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31052474200 = 23521197145513
BaseRepresentation
bin11100111010110111…
…110010011101011000
32222011002201010120001
4130322313302131120
51002043413133300
622133150142344
72146336450516
oct347267623530
988132633501
1031052474200
1112195348520
1260274b19b4
132c0b4458b7
1417081354b6
15c1b22316a
hex73adf2758

31052474200 has 96 divisors (see below), whose sum is σ = 79572875760. Its totient is φ = 11175321600.

The previous prime is 31052474191. The next prime is 31052474203. The reversal of 31052474200 is 247425013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31052474203) 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, 140644 + ... + 286156.

Almost surely, 231052474200 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 31052474200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39786437880).

31052474200 is an abundant number, since it is smaller than the sum of its proper divisors (48520401560).

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

31052474200 is a wasteful number, since it uses less digits than its factorization.

31052474200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145637 (or 145628 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

Adding to 31052474200 its reverse (247425013), we get a palindrome (31299899213).

The spelling of 31052474200 in words is "thirty-one billion, fifty-two million, four hundred seventy-four thousand, two hundred".

Divisors: 1 2 4 5 8 10 11 20 22 25 40 44 50 55 88 97 100 110 194 200 220 275 388 440 485 550 776 970 1067 1100 1940 2134 2200 2425 3880 4268 4850 5335 8536 9700 10670 19400 21340 26675 42680 53350 106700 145513 213400 291026 582052 727565 1164104 1455130 1600643 2910260 3201286 3637825 5820520 6402572 7275650 8003215 12805144 14114761 14551300 16006430 28229522 29102600 32012860 40016075 56459044 64025720 70573805 80032150 112918088 141147610 155262371 160064300 282295220 310524742 320128600 352869025 564590440 621049484 705738050 776311855 1242098968 1411476100 1552623710 2822952200 3105247420 3881559275 6210494840 7763118550 15526237100 31052474200