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10997031437 = 72224429213
BaseRepresentation
bin10100011110111100…
…10110001000001101
31001101101212002010122
422033132112020031
5140010220001222
65015120314325
7536342140100
oct121736261015
931341762118
1010997031437
1147335a0537
12216aa729a5
1310634283c2
1476473a737
154456a4a42
hex28f79620d

10997031437 has 6 divisors (see below), whose sum is σ = 12792465198. Its totient is φ = 9426026904.

The previous prime is 10997031389. The next prime is 10997031443. The reversal of 10997031437 is 73413079901.

10997031437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9751365001 + 1245666436 = 98749^2 + 35294^2 .

It is not a de Polignac number, because 10997031437 - 210 = 10997030413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10997031497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 112214558 + ... + 112214655.

It is an arithmetic number, because the mean of its divisors is an integer number (2132077533).

Almost surely, 210997031437 is an apocalyptic number.

It is an amenable number.

10997031437 is a deficient number, since it is larger than the sum of its proper divisors (1795433761).

10997031437 is an equidigital number, since it uses as much as digits as its factorization.

10997031437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224429227 (or 224429220 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 44.

The spelling of 10997031437 in words is "ten billion, nine hundred ninety-seven million, thirty-one thousand, four hundred thirty-seven".

Divisors: 1 7 49 224429213 1571004491 10997031437