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99911144 = 23109114577
BaseRepresentation
bin1011111010010…
…00010111101000
320222000000022202
411331020113220
5201034124034
613525235332
72322142064
oct575102750
9228000282
1099911144
11514407a3
1229562b48
1317912228
14d3aaaa4
158b8847e
hex5f485e8

99911144 has 16 divisors (see below), whose sum is σ = 189053700. Its totient is φ = 49496832.

The previous prime is 99911093. The next prime is 99911183. The reversal of 99911144 is 44111999.

99911144 is nontrivially palindromic in base 3.

It can be written as a sum of positive squares in 2 ways, for example, as 86676100 + 13235044 = 9310^2 + 3638^2 .

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 99911098 and 99911107.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56417 + ... + 58160.

Almost surely, 299911144 is an apocalyptic number.

It is an amenable number.

99911144 is a deficient number, since it is larger than the sum of its proper divisors (89142556).

99911144 is a wasteful number, since it uses less digits than its factorization.

99911144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114692 (or 114688 counting only the distinct ones).

The product of its digits is 11664, while the sum is 38.

The square root of 99911144 is about 9995.5562126377. The cubic root of 99911144 is about 464.0213649496.

The spelling of 99911144 in words is "ninety-nine million, nine hundred eleven thousand, one hundred forty-four".

Divisors: 1 2 4 8 109 218 436 872 114577 229154 458308 916616 12488893 24977786 49955572 99911144