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89890010 = 257373359
BaseRepresentation
bin1010101101110…
…01110011011010
320021010212220122
411112321303122
5141002440020
612530353242
72141024000
oct526716332
9207125818
1089890010
1146816771
122612b822
1315813b72
14bd1ca70
157d59125
hex55b9cda

89890010 has 64 divisors (see below), whose sum is σ = 191808000. Its totient is φ = 30312576.

The previous prime is 89889979. The next prime is 89890039. The reversal of 89890010 is 1009898.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 250211 + ... + 250569.

It is an arithmetic number, because the mean of its divisors is an integer number (2997000).

Almost surely, 289890010 is an apocalyptic number.

89890010 is an abundant number, since it is smaller than the sum of its proper divisors (101917990).

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

89890010 is a wasteful number, since it uses less digits than its factorization.

89890010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460 (or 446 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 35.

The square root of 89890010 is about 9481.0342262857. The cubic root of 89890010 is about 447.9578410849.

The spelling of 89890010 in words is "eighty-nine million, eight hundred ninety thousand, ten".

Divisors: 1 2 5 7 10 14 35 49 70 73 98 146 245 343 359 365 490 511 686 718 730 1022 1715 1795 2513 2555 3430 3577 3590 5026 5110 7154 12565 17591 17885 25039 25130 26207 35182 35770 50078 52414 87955 123137 125195 131035 175910 183449 246274 250390 262070 366898 615685 917245 1231370 1284143 1834490 2568286 6420715 8989001 12841430 17978002 44945005 89890010