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99953089 = 647154487
BaseRepresentation
bin1011111010100…
…10100111000001
320222002010212021
411331102213001
5201041444324
613530201441
72322405265
oct575224701
9228063767
1099953089
115146a265
1229583281
1317928352
14d3bc0a5
158b95ae4
hex5f529c1

99953089 has 4 divisors (see below), whose sum is σ = 100108224. Its totient is φ = 99797956.

The previous prime is 99953069. The next prime is 99953099. The reversal of 99953089 is 98035999.

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, and also an emirpimes, since its reverse is a distinct semiprime: 98035999 = 127771937.

It is a cyclic number.

It is not a de Polignac number, because 99953089 - 27 = 99952961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99953059) 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, 76597 + ... + 77890.

It is an arithmetic number, because the mean of its divisors is an integer number (25027056).

Almost surely, 299953089 is an apocalyptic number.

It is an amenable number.

99953089 is a deficient number, since it is larger than the sum of its proper divisors (155135).

99953089 is a wasteful number, since it uses less digits than its factorization.

99953089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155134.

The product of its (nonzero) digits is 787320, while the sum is 52.

The square root of 99953089 is about 9997.6541748552. The cubic root of 99953089 is about 464.0862914843.

The spelling of 99953089 in words is "ninety-nine million, nine hundred fifty-three thousand, eighty-nine".

Divisors: 1 647 154487 99953089