Base | Representation |
---|---|
bin | 11101001101101001100… |
… | …111101111011101111101 |
3 | 21002220202122100111020221 |
4 | 131031221213233131331 |
5 | 230342401032043312 |
6 | 4134124234141341 |
7 | 265016155231000 |
oct | 35155147573575 |
9 | 7086678314227 |
10 | 2007521752957 |
11 | 70442676a146 |
12 | 2850a2b81851 |
13 | 11740199a676 |
14 | 6d243825537 |
15 | 3734850a207 |
hex | 1d3699ef77d |
2007521752957 has 64 divisors (see below), whose sum is σ = 2497651200000. Its totient is φ = 1610201261760.
The previous prime is 2007521752937. The next prime is 2007521753033. The reversal of 2007521752957 is 7592571257002.
It is not a de Polignac number, because 2007521752957 - 223 = 2007513364349 is a prime.
It is a super-2 number, since 2×20075217529572 (a number of 25 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2007521752937) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 41643894 + ... + 41692072.
It is an arithmetic number, because the mean of its divisors is an integer number (39025800000).
Almost surely, 22007521752957 is an apocalyptic number.
It is an amenable number.
2007521752957 is a deficient number, since it is larger than the sum of its proper divisors (490129447043).
2007521752957 is an equidigital number, since it uses as much as digits as its factorization.
2007521752957 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 48359 (or 48345 counting only the distinct ones).
The product of its (nonzero) digits is 3087000, while the sum is 52.
The spelling of 2007521752957 in words is "two trillion, seven billion, five hundred twenty-one million, seven hundred fifty-two thousand, nine hundred fifty-seven".
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