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99702961 = 727137143
BaseRepresentation
bin1011111000101…
…01100010110001
320221121102202021
411330111202301
5201010443321
613520551441
72320314121
oct574254261
9227542667
1099702961
1151309346
1229482581
131786b547
14d354c81
158b46941
hex5f158b1

99702961 has 4 divisors (see below), whose sum is σ = 99840832. Its totient is φ = 99565092.

The previous prime is 99702959. The next prime is 99702971. The reversal of 99702961 is 16920799.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 99702961 - 21 = 99702959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99702971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67845 + ... + 69298.

It is an arithmetic number, because the mean of its divisors is an integer number (24960208).

Almost surely, 299702961 is an apocalyptic number.

It is an amenable number.

99702961 is a deficient number, since it is larger than the sum of its proper divisors (137871).

99702961 is a wasteful number, since it uses less digits than its factorization.

99702961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137870.

The product of its (nonzero) digits is 61236, while the sum is 43.

The square root of 99702961 is about 9985.1370045683. The cubic root of 99702961 is about 463.6988499321.

The spelling of 99702961 in words is "ninety-nine million, seven hundred two thousand, nine hundred sixty-one".

Divisors: 1 727 137143 99702961