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31113301300 = 22521394794673
BaseRepresentation
bin11100111110011111…
…110100110100110100
32222022100011110122121
4130332133310310310
51002210001120200
622143202005324
72151005461144
oct347637646464
988270143577
1031113301300
1112216713854
126043946844
132c1ac22173
14171224a924
15c2173ae1a
hex73e7f4d34

31113301300 has 72 divisors (see below), whose sum is σ = 68158137600. Its totient is φ = 12327352320.

The previous prime is 31113301283. The next prime is 31113301301. The reversal of 31113301300 is 310331113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31113301301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6655764 + ... + 6660436.

It is an arithmetic number, because the mean of its divisors is an integer number (946640800).

Almost surely, 231113301300 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 31113301300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34079068800).

31113301300 is an abundant number, since it is smaller than the sum of its proper divisors (37044836300).

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

31113301300 is a wasteful number, since it uses less digits than its factorization.

31113301300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5305 (or 5298 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 16.

Adding to 31113301300 its reverse (310331113), we get a palindrome (31423632413).

The spelling of 31113301300 in words is "thirty-one billion, one hundred thirteen million, three hundred one thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 139 278 479 556 695 958 1390 1916 2395 2780 3475 4673 4790 6950 9346 9580 11975 13900 18692 23365 23950 46730 47900 66581 93460 116825 133162 233650 266324 332905 467300 649547 665810 1299094 1331620 1664525 2238367 2598188 3247735 3329050 4476734 6495470 6658100 8953468 11191835 12990940 16238675 22383670 32477350 44767340 55959175 64954700 111918350 223836700 311133013 622266026 1244532052 1555665065 3111330130 6222660260 7778325325 15556650650 31113301300