Base | Representation |
---|---|
bin | 11100111001001101… |
… | …011110101110101000 |
3 | 2222002011021021201221 |
4 | 130321031132232220 |
5 | 1002014244343440 |
6 | 22130312551424 |
7 | 2145550541464 |
oct | 347115365650 |
9 | 88064237657 |
10 | 31024606120 |
11 | 12180643852 |
12 | 601a0b2574 |
13 | 2c05739101 |
14 | 170455d4a4 |
15 | c18a6ad4a |
hex | 73935eba8 |
31024606120 has 64 divisors (see below), whose sum is σ = 70668579600. Its totient is φ = 12256696320.
The previous prime is 31024606103. The next prime is 31024606121. The reversal of 31024606120 is 2160642013.
It can be written as a sum of positive squares in 8 ways, for example, as 9274845636 + 21749760484 = 96306^2 + 147478^2 .
It is a super-2 number, since 2×310246061202 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (31024606121) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3544950 + ... + 3553690.
Almost surely, 231024606120 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 31024606120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35334289800).
31024606120 is an abundant number, since it is smaller than the sum of its proper divisors (39643973480).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31024606120 is a wasteful number, since it uses less digits than its factorization.
31024606120 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9838 (or 9834 counting only the distinct ones).
The product of its (nonzero) digits is 1728, while the sum is 25.
The spelling of 31024606120 in words is "thirty-one billion, twenty-four million, six hundred six thousand, one hundred twenty".
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