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76260056561 = 136253393809
BaseRepresentation
bin100011100000101110…
…1000001110111110001
321021211200202021002022
41013001131001313301
52222140033302221
655011113401225
75336536533263
oct1070135016761
9237750667068
1076260056561
112a3838a5237
1212943409215
137264367330
14399619bb33
151eb4eb74ab
hex11c1741df1

76260056561 has 8 divisors (see below), whose sum is σ = 82128403560. Its totient is φ = 70392022272.

The previous prime is 76260056503. The next prime is 76260056569. The reversal of 76260056561 is 16565006267.

It can be written as a sum of positive squares in 4 ways, for example, as 26947192336 + 49312864225 = 164156^2 + 222065^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 76260056561 - 210 = 76260055537 is a prime.

It is a super-3 number, since 3×762600565613 (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76260056569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 766025 + ... + 859833.

It is an arithmetic number, because the mean of its divisors is an integer number (10266050445).

Almost surely, 276260056561 is an apocalyptic number.

It is an amenable number.

76260056561 is a deficient number, since it is larger than the sum of its proper divisors (5868346999).

76260056561 is a wasteful number, since it uses less digits than its factorization.

76260056561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156355.

The product of its (nonzero) digits is 453600, while the sum is 44.

The spelling of 76260056561 in words is "seventy-six billion, two hundred sixty million, fifty-six thousand, five hundred sixty-one".

Divisors: 1 13 62533 93809 812929 1219517 5866158197 76260056561