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31093982080 = 275731733067
BaseRepresentation
bin11100111101010110…
…001000001110000000
32222020222210221122221
4130331112020032000
51002140024411310
622141231540424
72150352325660
oct347526101600
988228727587
1031093982080
1112206818a57
12603938a714
132c16c19885
14170d85c1a0
15c1ebc1ada
hex73d588380

31093982080 has 256 divisors, whose sum is σ = 88923893760. Its totient is φ = 10172252160.

The previous prime is 31093982069. The next prime is 31093982123. The reversal of 31093982080 is 8028939013.

It is a happy number.

It is a super-2 number, since 2×310939820802 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10136707 + ... + 10139773.

It is an arithmetic number, because the mean of its divisors is an integer number (347358960).

Almost surely, 231093982080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31093982080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44461946880).

31093982080 is an abundant number, since it is smaller than the sum of its proper divisors (57829911680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31093982080 is a wasteful number, since it uses less digits than its factorization.

31093982080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3197 (or 3185 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 43.

The spelling of 31093982080 in words is "thirty-one billion, ninety-three million, nine hundred eighty-two thousand, eighty".