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31114304000 = 29531337397
BaseRepresentation
bin11100111110100011…
…101001101000000000
32222022102001102002122
4130332203221220000
51002210230212000
622143235303412
72151020135363
oct347643515000
988272042078
1031114304000
111221723912a
12604414ab68
132c1b1b3690
14171242c0da
15c21888085
hex73e8e9a00

31114304000 has 160 divisors (see below), whose sum is σ = 83555808336. Its totient is φ = 11488051200.

The previous prime is 31114303991. The next prime is 31114304003. The reversal of 31114304000 is 40341113.

It can be written as a sum of positive squares in 8 ways, for example, as 525693184 + 30588610816 = 22928^2 + 174896^2 .

It is a tau number, because it is divible by the number of its divisors (160).

It is a self number, because there is not a number n which added to its sum of digits gives 31114304000.

It is not an unprimeable number, because it can be changed into a prime (31114304003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 813302 + ... + 850698.

Almost surely, 231114304000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31114304000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41777904168).

31114304000 is an abundant number, since it is smaller than the sum of its proper divisors (52441504336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31114304000 is an equidigital number, since it uses as much as digits as its factorization.

31114304000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37443 (or 37417 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 31114304000 its reverse (40341113), we get a palindrome (31154645113).

The spelling of 31114304000 in words is "thirty-one billion, one hundred fourteen million, three hundred four thousand".

Divisors: 1 2 4 5 8 10 13 16 20 25 26 32 40 50 52 64 65 80 100 104 125 128 130 160 200 208 250 256 260 320 325 400 416 500 512 520 640 650 800 832 1000 1040 1280 1300 1600 1625 1664 2000 2080 2560 2600 3200 3250 3328 4000 4160 5200 6400 6500 6656 8000 8320 10400 12800 13000 16000 16640 20800 26000 32000 33280 37397 41600 52000 64000 74794 83200 104000 149588 166400 186985 208000 299176 373970 416000 486161 598352 747940 832000 934925 972322 1196704 1495880 1869850 1944644 2393408 2430805 2991760 3739700 3889288 4674625 4786816 4861610 5983520 7479400 7778576 9349250 9573632 9723220 11967040 12154025 14958800 15557152 18698500 19147264 19446440 23934080 24308050 29917600 31114304 37397000 38892880 47868160 48616100 59835200 60770125 62228608 74794000 77785760 95736320 97232200 119670400 121540250 124457216 149588000 155571520 194464400 239340800 243080500 248914432 299176000 311143040 388928800 478681600 486161000 598352000 622286080 777857600 972322000 1196704000 1244572160 1555715200 1944644000 2393408000 3111430400 3889288000 6222860800 7778576000 15557152000 31114304000