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9940022937 = 3213104980989
BaseRepresentation
bin10010100000111100…
…01011011010011001
3221122201220111001200
421100132023122121
5130324121213222
64322201104413
7501215541465
oct112036133231
927581814050
109940022937
11424097a399
121b14a88109
13c2544aaa0
146a41cd4a5
153d29b1eac
hex25078b699

9940022937 has 24 divisors (see below), whose sum is σ = 15477189000. Its totient is φ = 6111030528.

The previous prime is 9940022921. The next prime is 9940022941. The reversal of 9940022937 is 7392200499.

It can be written as a sum of positive squares in 4 ways, for example, as 4343337216 + 5596685721 = 65904^2 + 74811^2 .

It is not a de Polignac number, because 9940022937 - 24 = 9940022921 is a prime.

It is a super-2 number, since 2×99400229372 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9940022892 and 9940022901.

It is not an unprimeable number, because it can be changed into a prime (9940022987) 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, 82239 + ... + 163227.

It is an arithmetic number, because the mean of its divisors is an integer number (644882875).

Almost surely, 29940022937 is an apocalyptic number.

It is an amenable number.

9940022937 is a deficient number, since it is larger than the sum of its proper divisors (5537166063).

9940022937 is a wasteful number, since it uses less digits than its factorization.

9940022937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82057 (or 82054 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 9940022937 is about 99699.6636754608. The cubic root of 9940022937 is about 2150.1188279015.

The spelling of 9940022937 in words is "nine billion, nine hundred forty million, twenty-two thousand, nine hundred thirty-seven".

Divisors: 1 3 9 13 39 117 1049 3147 9441 13637 40911 80989 122733 242967 728901 1052857 3158571 9475713 84957461 254872383 764617149 1104446993 3313340979 9940022937