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76242087 = 3318115601
BaseRepresentation
bin1001000101101…
…01110010100111
312022110111111000
410202311302213
5124004221322
611322044343
71614022065
oct442656247
9168414430
1076242087
113a044899
12216496b3
1312a45a7c
14a1a9035
156a603ac
hex48b5ca7

76242087 has 16 divisors (see below), whose sum is σ = 113582560. Its totient is φ = 50544000.

The previous prime is 76242077. The next prime is 76242119. The reversal of 76242087 is 78024267.

76242087 is a `hidden beast` number, since 7 + 624 + 20 + 8 + 7 = 666.

It is not a de Polignac number, because 76242087 - 28 = 76241831 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 (76242077) 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, 2914 + ... + 12687.

It is an arithmetic number, because the mean of its divisors is an integer number (7098910).

Almost surely, 276242087 is an apocalyptic number.

76242087 is a deficient number, since it is larger than the sum of its proper divisors (37340473).

76242087 is a wasteful number, since it uses less digits than its factorization.

76242087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15791 (or 15785 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 76242087 is about 8731.6714894687. The cubic root of 76242087 is about 424.0316351589.

It can be divided in two parts, 762 and 42087, that added together give a square (42849 = 2072).

The spelling of 76242087 in words is "seventy-six million, two hundred forty-two thousand, eighty-seven".

Divisors: 1 3 9 27 181 543 1629 4887 15601 46803 140409 421227 2823781 8471343 25414029 76242087