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89857868 = 2237959273
BaseRepresentation
bin1010101101100…
…01111101001100
320021002020211012
411112301331030
5141000422433
612525544352
72140531202
oct526617514
9207066735
1089857868
11467a4601
12261150b8
1315802349
14bd11072
157d4e848
hex55b1f4c

89857868 has 12 divisors (see below), whose sum is σ = 157668840. Its totient is φ = 44809632.

The previous prime is 89857861. The next prime is 89857891. The reversal of 89857868 is 86875898.

It is a super-3 number, since 3×898578683 (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (89857861) 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, 28121 + ... + 31152.

It is an arithmetic number, because the mean of its divisors is an integer number (13139070).

Almost surely, 289857868 is an apocalyptic number.

It is an amenable number.

89857868 is a deficient number, since it is larger than the sum of its proper divisors (67810972).

89857868 is a wasteful number, since it uses less digits than its factorization.

89857868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59656 (or 59654 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 59.

The square root of 89857868 is about 9479.3390064920. The cubic root of 89857868 is about 447.9044425763.

The spelling of 89857868 in words is "eighty-nine million, eight hundred fifty-seven thousand, eight hundred sixty-eight".

Divisors: 1 2 4 379 758 1516 59273 118546 237092 22464467 44928934 89857868