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31002422344 = 2337339103787
BaseRepresentation
bin11100110111111000…
…110110110001001000
32222000121112020022121
4130313320312301020
51001443110003334
622124201301024
72145161145655
oct346770666110
988017466277
1031002422344
111216a071853
126012794774
132c00c6ca0a
141701626c2c
15c16b37db4
hex737e36c48

31002422344 has 16 divisors (see below), whose sum is σ = 58131658800. Its totient is φ = 15500646672.

The previous prime is 31002422299. The next prime is 31002422369. The reversal of 31002422344 is 44322420013.

It is a happy number.

It is a super-2 number, since 2×310024223442 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 246819 + ... + 350605.

It is an arithmetic number, because the mean of its divisors is an integer number (3633228675).

Almost surely, 231002422344 is an apocalyptic number.

It is an amenable number.

31002422344 is a deficient number, since it is larger than the sum of its proper divisors (27129236456).

31002422344 is a wasteful number, since it uses less digits than its factorization.

31002422344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141132 (or 141128 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 31002422344 its reverse (44322420013), we get a palindrome (75324842357).

The spelling of 31002422344 in words is "thirty-one billion, two million, four hundred twenty-two thousand, three hundred forty-four".

Divisors: 1 2 4 8 37339 74678 103787 149356 207574 298712 415148 830296 3875302793 7750605586 15501211172 31002422344