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88339681 = 151585031
BaseRepresentation
bin1010100001111…
…11010011100001
320011020010021001
411100333103201
5140103332211
612433232001
72121606043
oct520772341
9204203231
1088339681
1145957a01
1225702601
13153c0301
14ba37a93
157b4eac1
hex543f4e1

88339681 has 4 divisors (see below), whose sum is σ = 88924864. Its totient is φ = 87754500.

The previous prime is 88339679. The next prime is 88339687. The reversal of 88339681 is 18693388.

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 a cyclic number.

It is not a de Polignac number, because 88339681 - 21 = 88339679 is a prime.

It is a super-2 number, since 2×883396812 = 15607798478363522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88339687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 292365 + ... + 292666.

It is an arithmetic number, because the mean of its divisors is an integer number (22231216).

Almost surely, 288339681 is an apocalyptic number.

It is an amenable number.

88339681 is a deficient number, since it is larger than the sum of its proper divisors (585183).

88339681 is a wasteful number, since it uses less digits than its factorization.

88339681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585182.

The product of its digits is 248832, while the sum is 46.

The square root of 88339681 is about 9398.9191399863. The cubic root of 88339681 is about 445.3675892146.

The spelling of 88339681 in words is "eighty-eight million, three hundred thirty-nine thousand, six hundred eighty-one".

Divisors: 1 151 585031 88339681