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75142898087 = 1911334999021
BaseRepresentation
bin100010111111011011…
…1011010000110100111
321011221211121201202112
41011332313122012213
52212343040214322
654304205031235
75300053044425
oct1057667320647
9234854551675
1075142898087
1129960230574
121269125551b
137116a8970a
1438cba74115
151e4bd925e2
hex117edda1a7

75142898087 has 8 divisors (see below), whose sum is σ = 79797770160. Its totient is φ = 70558024320.

The previous prime is 75142898053. The next prime is 75142898153. The reversal of 75142898087 is 78089824157.

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 75142898087 - 26 = 75142898023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75142898027) 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, 17497364 + ... + 17501657.

It is an arithmetic number, because the mean of its divisors is an integer number (9974721270).

Almost surely, 275142898087 is an apocalyptic number.

75142898087 is a deficient number, since it is larger than the sum of its proper divisors (4654872073).

75142898087 is a wasteful number, since it uses less digits than its factorization.

75142898087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34999153.

The product of its (nonzero) digits is 9031680, while the sum is 59.

The spelling of 75142898087 in words is "seventy-five billion, one hundred forty-two million, eight hundred ninety-eight thousand, eighty-seven".

Divisors: 1 19 113 2147 34999021 664981399 3954889373 75142898087