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99808868 = 22231975507
BaseRepresentation
bin1011111001011…
…11011001100100
320221210211000202
411330233121210
5201022340433
613523130032
72321234645
oct574573144
9227724022
1099808868
1151380975
1229513918
13178a7803
14d3816cc
158b67ee8
hex5f2f664

99808868 has 24 divisors (see below), whose sum is σ = 183218112. Its totient is φ = 47483744.

The previous prime is 99808867. The next prime is 99808901. The reversal of 99808868 is 86880899.

It is not an unprimeable number, because it can be changed into a prime (99808861) 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, 15371 + ... + 20877.

It is an arithmetic number, because the mean of its divisors is an integer number (7634088).

Almost surely, 299808868 is an apocalyptic number.

It is an amenable number.

99808868 is a deficient number, since it is larger than the sum of its proper divisors (83409244).

99808868 is a wasteful number, since it uses less digits than its factorization.

99808868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5731 (or 5729 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 56.

The square root of 99808868 is about 9990.4388292006. The cubic root of 99808868 is about 463.8629760376.

The spelling of 99808868 in words is "ninety-nine million, eight hundred eight thousand, eight hundred sixty-eight".

Divisors: 1 2 4 23 46 92 197 394 788 4531 5507 9062 11014 18124 22028 126661 253322 506644 1084879 2169758 4339516 24952217 49904434 99808868