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88669939980 = 22356722057199
BaseRepresentation
bin101001010010100100…
…0111110100100001100
322110212120010122210010
41102211020332210030
52423044001034410
6104422344313220
76256216024356
oct1224510764414
9273776118703
1088669939980
1134671962336
1215227472810
1384913c0c0b
1444123d40d6
15248e6eec20
hex14a523e90c

88669939980 has 48 divisors (see below), whose sum is σ = 251981452800. Its totient is φ = 23292401088.

The previous prime is 88669939877. The next prime is 88669939997. The reversal of 88669939980 is 8993996688.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11024580 + ... + 11032619.

It is an arithmetic number, because the mean of its divisors is an integer number (5249613600).

Almost surely, 288669939980 is an apocalyptic number.

It is an amenable number.

88669939980 is an abundant number, since it is smaller than the sum of its proper divisors (163311512820).

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

88669939980 is a wasteful number, since it uses less digits than its factorization.

88669939980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22057278 (or 22057276 counting only the distinct ones).

The product of its (nonzero) digits is 362797056, while the sum is 75.

The spelling of 88669939980 in words is "eighty-eight billion, six hundred sixty-nine million, nine hundred thirty-nine thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 67 134 201 268 335 402 670 804 1005 1340 2010 4020 22057199 44114398 66171597 88228796 110285995 132343194 220571990 264686388 330857985 441143980 661715970 1323431940 1477832333 2955664666 4433496999 5911329332 7389161665 8866993998 14778323330 17733987996 22167484995 29556646660 44334969990 88669939980