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31032000010 = 2511231381937
BaseRepresentation
bin11100111001101001…
…101011111000001010
32222002200011221020201
4130321221223320022
51002023143000020
622131135242414
72146000435144
oct347151537012
988080157221
1031032000010
1112184833a00
12602067940a
132c071276ab
141705525c94
15c1952ba0a
hex739a6be0a

31032000010 has 48 divisors (see below), whose sum is σ = 61594105608. Its totient is φ = 11248174080.

The previous prime is 31031999987. The next prime is 31032000019. The reversal of 31032000010 is 1000023013.

It can be written as a sum of positive squares in 4 ways, for example, as 19691666929 + 11340333081 = 140327^2 + 106491^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (31032000019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 337762 + ... + 419698.

Almost surely, 231032000010 is an apocalyptic number.

31032000010 is a deficient number, since it is larger than the sum of its proper divisors (30562105598).

31032000010 is a wasteful number, since it uses less digits than its factorization.

31032000010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82279 (or 82268 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

Adding to 31032000010 its reverse (1000023013), we get a palindrome (32032023023).

The spelling of 31032000010 in words is "thirty-one billion, thirty-two million, ten", and thus it is an aban number and an uban number.

Divisors: 1 2 5 10 11 22 55 110 121 242 313 605 626 1210 1565 3130 3443 6886 17215 34430 37873 75746 81937 163874 189365 378730 409685 819370 901307 1802614 4506535 9013070 9914377 19828754 25646281 49571885 51292562 99143770 128231405 256462810 282109091 564218182 1410545455 2821090910 3103200001 6206400002 15516000005 31032000010