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99800075 = 5219971999
BaseRepresentation
bin1011111001011…
…01010000001011
320221210100222002
411330231100023
5201022100300
613523021215
72321200214
oct574552013
9227710862
1099800075
1151375301
122950a80b
13178a37cb
14d37c40b
158b655d5
hex5f2d40b

99800075 has 12 divisors (see below), whose sum is σ = 123876000. Its totient is φ = 79760160.

The previous prime is 99800069. The next prime is 99800089. The reversal of 99800075 is 57000899.

It is not a de Polignac number, because 99800075 - 26 = 99800011 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48926 + ... + 50924.

It is an arithmetic number, because the mean of its divisors is an integer number (10323000).

Almost surely, 299800075 is an apocalyptic number.

99800075 is a deficient number, since it is larger than the sum of its proper divisors (24075925).

99800075 is a wasteful number, since it uses less digits than its factorization.

99800075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4006 (or 4001 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 99800075 is about 9989.9987487487. The cubic root of 99800075 is about 463.8493537780.

The spelling of 99800075 in words is "ninety-nine million, eight hundred thousand, seventy-five".

Divisors: 1 5 25 1997 1999 9985 9995 49925 49975 3992003 19960015 99800075