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76538153 = 621112323
BaseRepresentation
bin1001000111111…
…10000100101001
312100000112121102
410203332010221
5124043210103
611332251145
71616364206
oct443760451
9170015542
1076538153
113a22727a
1221770ab5
1312b1a763
14a244cad
156abce88
hex48fe129

76538153 has 4 divisors (see below), whose sum is σ = 76556688. Its totient is φ = 76519620.

The previous prime is 76538149. The next prime is 76538173. The reversal of 76538153 is 35183567.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35183567 = 113311359.

It is a cyclic number.

It is not a de Polignac number, because 76538153 - 22 = 76538149 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76538113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50 + ... + 12372.

It is an arithmetic number, because the mean of its divisors is an integer number (19139172).

Almost surely, 276538153 is an apocalyptic number.

It is an amenable number.

76538153 is a deficient number, since it is larger than the sum of its proper divisors (18535).

76538153 is a wasteful number, since it uses less digits than its factorization.

76538153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18534.

The product of its digits is 75600, while the sum is 38.

The square root of 76538153 is about 8748.6086322340. The cubic root of 76538153 is about 424.5797978272.

The spelling of 76538153 in words is "seventy-six million, five hundred thirty-eight thousand, one hundred fifty-three".

Divisors: 1 6211 12323 76538153