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88992861 = 3220713441
BaseRepresentation
bin1010100110111…
…10110001011101
320012110022020220
411103132301131
5140240232421
612455231553
72130266256
oct523366135
9205408226
1088992861
1146263721
12259785b9
131558b6c9
14bb67b2d
157c2d3c6
hex54dec5d

88992861 has 8 divisors (see below), whose sum is σ = 118719744. Its totient is φ = 59297280.

The previous prime is 88992859. The next prime is 88992889. The reversal of 88992861 is 16829988.

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

It is not a de Polignac number, because 88992861 - 21 = 88992859 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88992061) 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, 100 + ... + 13341.

It is an arithmetic number, because the mean of its divisors is an integer number (14839968).

Almost surely, 288992861 is an apocalyptic number.

It is an amenable number.

88992861 is a deficient number, since it is larger than the sum of its proper divisors (29726883).

88992861 is a wasteful number, since it uses less digits than its factorization.

88992861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15651.

The product of its digits is 497664, while the sum is 51.

The square root of 88992861 is about 9433.6027582255. The cubic root of 88992861 is about 446.4625714807.

The spelling of 88992861 in words is "eighty-eight million, nine hundred ninety-two thousand, eight hundred sixty-one".

Divisors: 1 3 2207 6621 13441 40323 29664287 88992861