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99157049 = 1812632083
BaseRepresentation
bin1011110100100…
…00010000111001
320220120200220022
411322100100321
5200341011144
613501140225
72312551415
oct572202071
9226520808
1099157049
1150a76182
122925a675
1317709c14
14d251d45
158a89cee
hex5e90439

99157049 has 8 divisors (see below), whose sum is σ = 100132032. Its totient is φ = 98187120.

The previous prime is 99157043. The next prime is 99157057. The reversal of 99157049 is 94075199.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-99157049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99157043) 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, 46562 + ... + 48644.

It is an arithmetic number, because the mean of its divisors is an integer number (12516504).

Almost surely, 299157049 is an apocalyptic number.

It is an amenable number.

99157049 is a deficient number, since it is larger than the sum of its proper divisors (974983).

99157049 is a wasteful number, since it uses less digits than its factorization.

99157049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2527.

The product of its (nonzero) digits is 102060, while the sum is 44.

The square root of 99157049 is about 9957.7632528595. The cubic root of 99157049 is about 462.8509908341.

The spelling of 99157049 in words is "ninety-nine million, one hundred fifty-seven thousand, forty-nine".

Divisors: 1 181 263 2083 47603 377023 547829 99157049