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88157001 = 329385667
BaseRepresentation
bin1010100000100…
…10101101001001
320010212211200010
411100102231021
5140032011001
612425302133
72120215332
oct520225511
9203784603
1088157001
1145842729
1225634949
131535810a
14b9cb289
157b158d6
hex5412b49

88157001 has 4 divisors (see below), whose sum is σ = 117542672. Its totient is φ = 58771332.

The previous prime is 88156987. The next prime is 88157021. The reversal of 88157001 is 10075188.

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.

It is not a de Polignac number, because 88157001 - 214 = 88140617 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 88157001.

It is not an unprimeable number, because it can be changed into a prime (88157021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14692831 + ... + 14692836.

It is an arithmetic number, because the mean of its divisors is an integer number (29385668).

Almost surely, 288157001 is an apocalyptic number.

It is an amenable number.

88157001 is a deficient number, since it is larger than the sum of its proper divisors (29385671).

88157001 is a wasteful number, since it uses less digits than its factorization.

88157001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29385670.

The product of its (nonzero) digits is 2240, while the sum is 30.

The square root of 88157001 is about 9389.1959719669. The cubic root of 88157001 is about 445.0603814880.

The spelling of 88157001 in words is "eighty-eight million, one hundred fifty-seven thousand, one".

Divisors: 1 3 29385667 88157001