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89920680 = 2335749339
BaseRepresentation
bin1010101110000…
…01010010101000
320021012102222120
411113001102220
5141004430210
612531151240
72141212263
oct527012250
9207172876
1089920680
1146837813
1226145520
1315824b05
14bd29cda
157d63270
hex55c14a8

89920680 has 32 divisors (see below), whose sum is σ = 269762400. Its totient is φ = 23978816.

The previous prime is 89920669. The next prime is 89920687. The reversal of 89920680 is 8602998.

It is not an unprimeable number, because it can be changed into a prime (89920687) 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 7 ways as a sum of consecutive naturals, for example, 374550 + ... + 374789.

It is an arithmetic number, because the mean of its divisors is an integer number (8430075).

Almost surely, 289920680 is an apocalyptic number.

It is an amenable number.

89920680 is an abundant number, since it is smaller than the sum of its proper divisors (179841720).

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

89920680 is a wasteful number, since it uses less digits than its factorization.

89920680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749353 (or 749349 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 89920680 is about 9482.6515279219. The cubic root of 89920680 is about 448.0087822471.

The spelling of 89920680 in words is "eighty-nine million, nine hundred twenty thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 749339 1498678 2248017 2997356 3746695 4496034 5994712 7493390 8992068 11240085 14986780 17984136 22480170 29973560 44960340 89920680