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88923638660 = 22520272193479
BaseRepresentation
bin101001011010001000…
…0110000101110000100
322111112020111212221112
41102310100300232010
52424103422414120
6104503450104152
76265416312563
oct1226420605604
9274466455845
1088923638660
113479209196a
121529841b058
138501b29c8c
144437d93bda
1524a6b14bc5
hex14b4430b84

88923638660 has 24 divisors (see below), whose sum is σ = 186831852480. Its totient is φ = 35551891424.

The previous prime is 88923638653. The next prime is 88923638669. The reversal of 88923638660 is 6683632988.

It is a self number, because there is not a number n which added to its sum of digits gives 88923638660.

It is not an unprimeable number, because it can be changed into a prime (88923638669) 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, 1056200 + ... + 1137279.

It is an arithmetic number, because the mean of its divisors is an integer number (7784660520).

Almost surely, 288923638660 is an apocalyptic number.

It is an amenable number.

88923638660 is an abundant number, since it is smaller than the sum of its proper divisors (97908213820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

88923638660 is a wasteful number, since it uses less digits than its factorization.

88923638660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2195515 (or 2195513 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 59.

The spelling of 88923638660 in words is "eighty-eight billion, nine hundred twenty-three million, six hundred thirty-eight thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 2027 4054 8108 10135 20270 40540 2193479 4386958 8773916 10967395 21934790 43869580 4446181933 8892363866 17784727732 22230909665 44461819330 88923638660