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99802073 = 727128687
BaseRepresentation
bin1011111001011…
…01101111011001
320221210110201002
411330231233121
5201022131243
613523034345
72321206100
oct574555731
9227713632
1099802073
1151376858
122950b9b5
13178a46a7
14d37d037
158b65eb8
hex5f2dbd9

99802073 has 12 divisors (see below), whose sum is σ = 117735552. Its totient is φ = 84336840.

The previous prime is 99802069. The next prime is 99802081. The reversal of 99802073 is 37020899.

It is not a de Polignac number, because 99802073 - 22 = 99802069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (99802013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10865 + ... + 17822.

It is an arithmetic number, because the mean of its divisors is an integer number (9811296).

Almost surely, 299802073 is an apocalyptic number.

It is an amenable number.

99802073 is a deficient number, since it is larger than the sum of its proper divisors (17933479).

99802073 is a wasteful number, since it uses less digits than its factorization.

99802073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28772 (or 28765 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 99802073 is about 9990.0987482607. The cubic root of 99802073 is about 463.8524491826.

The spelling of 99802073 in words is "ninety-nine million, eight hundred two thousand, seventy-three".

Divisors: 1 7 49 71 497 3479 28687 200809 1405663 2036777 14257439 99802073