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76528640941 = 2572691106977
BaseRepresentation
bin100011101000101110…
…1100110001110101101
321022112102010202120221
41013101131212032231
52223212313002231
655053510211341
75346310500154
oct1072135461655
9238472122527
1076528640941
112a5014716a5
12129b9353b51
1372a7bb59bc
1439bdb1459b
151ecd86cd11
hex11d17663ad

76528640941 has 8 divisors (see below), whose sum is σ = 77112087480. Its totient is φ = 75947409408.

The previous prime is 76528640921. The next prime is 76528640957. The reversal of 76528640941 is 14904682567.

It can be written as a sum of positive squares in 4 ways, for example, as 20205485316 + 56323155625 = 142146^2 + 237325^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 76528640941 - 225 = 76495086509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76528640921) 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, 484356 + ... + 622621.

It is an arithmetic number, because the mean of its divisors is an integer number (9639010935).

Almost surely, 276528640941 is an apocalyptic number.

It is an amenable number.

76528640941 is a deficient number, since it is larger than the sum of its proper divisors (583446539).

76528640941 is a wasteful number, since it uses less digits than its factorization.

76528640941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107503.

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 76528640941 in words is "seventy-six billion, five hundred twenty-eight million, six hundred forty thousand, nine hundred forty-one".

Divisors: 1 257 269 69133 1106977 284493089 297776813 76528640941