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99983393 = 292734159
BaseRepresentation
bin1011111010110…
…10000000100001
320222010200102122
411331122000201
5201043432033
613530554025
72322562526
oct575320041
9228120378
1099983393
1151490004
1229598915
1317939093
14d3c914d
158b9ea98
hex5f5a021

99983393 has 4 divisors (see below), whose sum is σ = 100020480. Its totient is φ = 99946308.

The previous prime is 99983381. The next prime is 99983413. The reversal of 99983393 is 39338999.

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: 39338999 = 75619857.

It is a cyclic number.

It is not a de Polignac number, because 99983393 - 210 = 99982369 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 (99983333) 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, 14153 + ... + 20006.

It is an arithmetic number, because the mean of its divisors is an integer number (25005120).

Almost surely, 299983393 is an apocalyptic number.

It is an amenable number.

99983393 is a deficient number, since it is larger than the sum of its proper divisors (37087).

99983393 is a wasteful number, since it uses less digits than its factorization.

99983393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37086.

The product of its digits is 1417176, while the sum is 53.

The square root of 99983393 is about 9999.1696155231. The cubic root of 99983393 is about 464.1331876502.

The spelling of 99983393 in words is "ninety-nine million, nine hundred eighty-three thousand, three hundred ninety-three".

Divisors: 1 2927 34159 99983393