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31130522030 = 253259955217
BaseRepresentation
bin11100111111100001…
…100001000110101110
32222100112120101001102
4130333201201012232
51002223403201110
622145015043102
72151305033306
oct347741410656
988315511042
1031130522030
1112225405a63
126049670492
132c2167154a
141714650606
15c22edd5a5
hex73f8611ae

31130522030 has 16 divisors (see below), whose sum is σ = 56052192240. Its totient is φ = 12448374912.

The previous prime is 31130522029. The next prime is 31130522099. The reversal of 31130522030 is 3022503113.

It is a junction number, because it is equal to n+sod(n) for n = 31130521993 and 31130522011.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 445019 + ... + 510198.

It is an arithmetic number, because the mean of its divisors is an integer number (3503262015).

Almost surely, 231130522030 is an apocalyptic number.

31130522030 is a deficient number, since it is larger than the sum of its proper divisors (24921670210).

31130522030 is a wasteful number, since it uses less digits than its factorization.

31130522030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958483.

The product of its (nonzero) digits is 540, while the sum is 20.

The spelling of 31130522030 in words is "thirty-one billion, one hundred thirty million, five hundred twenty-two thousand, thirty".

Divisors: 1 2 5 10 3259 6518 16295 32590 955217 1910434 4776085 9552170 3113052203 6226104406 15565261015 31130522030