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31143311410 = 2529107390729
BaseRepresentation
bin11101000000010010…
…010011100000110010
32222101102122010210011
4131000102103200302
51002240141431120
622150153125134
72151521531161
oct350022234062
988342563704
1031143311410
11122316508a2
1260519b97aa
132c241cb923
14171621d3d8
15c241b7c5a
hex740493832

31143311410 has 16 divisors (see below), whose sum is σ = 57990994200. Its totient is φ = 12027761536.

The previous prime is 31143311387. The next prime is 31143311413. The reversal of 31143311410 is 1411334113.

It can be written as a sum of positive squares in 4 ways, for example, as 22153047921 + 8990263489 = 148839^2 + 94817^2 .

It is not an unprimeable number, because it can be changed into a prime (31143311413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53695075 + ... + 53695654.

Almost surely, 231143311410 is an apocalyptic number.

31143311410 is a deficient number, since it is larger than the sum of its proper divisors (26847682790).

31143311410 is a wasteful number, since it uses less digits than its factorization.

31143311410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107390765.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 31143311410 its reverse (1411334113), we get a palindrome (32554645523).

The spelling of 31143311410 in words is "thirty-one billion, one hundred forty-three million, three hundred eleven thousand, four hundred ten".

Divisors: 1 2 5 10 29 58 145 290 107390729 214781458 536953645 1073907290 3114331141 6228662282 15571655705 31143311410