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99682155 = 3252215159
BaseRepresentation
bin1011111000100…
…00011101101011
320221120101012200
411330100131223
5201004312110
613520311243
72320166346
oct574203553
9227511180
1099682155
11512a4751
1229472523
1317861c31
14d34b45d
158b406c0
hex5f1076b

99682155 has 12 divisors (see below), whose sum is σ = 172782480. Its totient is φ = 53163792.

The previous prime is 99682153. The next prime is 99682199. The reversal of 99682155 is 55128699.

It is not a de Polignac number, because 99682155 - 21 = 99682153 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 2215159 = 99682155 / (9 + 9 + 6 + 8 + 2 + 1 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 99682155.

It is not an unprimeable number, because it can be changed into a prime (99682153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1107535 + ... + 1107624.

It is an arithmetic number, because the mean of its divisors is an integer number (14398540).

Almost surely, 299682155 is an apocalyptic number.

99682155 is a deficient number, since it is larger than the sum of its proper divisors (73100325).

99682155 is a wasteful number, since it uses less digits than its factorization.

99682155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2215170 (or 2215167 counting only the distinct ones).

The product of its digits is 194400, while the sum is 45.

The square root of 99682155 is about 9984.0951017105. The cubic root of 99682155 is about 463.6665928177. Note that the first 3 decimals are identical.

The spelling of 99682155 in words is "ninety-nine million, six hundred eighty-two thousand, one hundred fifty-five".

Divisors: 1 3 5 9 15 45 2215159 6645477 11075795 19936431 33227385 99682155