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BaseRepresentation
bin1011111000011…
…11101110101101
320221120020002100
411330033232231
5201004213044
613520245313
72320154523
oct574175655
9227506070
1099679149
11512a2469
1229470839
131786075b
14d34a313
158b3e869

99679149 has 24 divisors (see below), whose sum is σ = 151968960. Its totient is φ = 62785152.

The previous prime is 99679133. The next prime is 99679163. The reversal of 99679149 is 94197699.

It is not a de Polignac number, because 99679149 - 24 = 99679133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99679095 and 99679104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99679169) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100912 + ... + 101894.

It is an arithmetic number, because the mean of its divisors is an integer number (6332040).

Almost surely, 299679149 is an apocalyptic number.

99679149 is the 5337-th nonagonal number.

It is an amenable number.

99679149 is a deficient number, since it is larger than the sum of its proper divisors (52289811).

99679149 is a wasteful number, since it uses less digits than its factorization.

99679149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601 (or 1598 counting only the distinct ones).

The product of its digits is 1102248, while the sum is 54.

The square root of 99679149 is about 9983.9445611442. The cubic root of 99679149 is about 463.6619320176.

The spelling of 99679149 in words is "ninety-nine million, six hundred seventy-nine thousand, one hundred forty-nine".