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9905299793 = 10519424643
BaseRepresentation
bin10010011100110011…
…01110000101010001
3221120022120100212022
421032121232011101
5130241224043133
64314520541225
7500314442024
oct111631560521
927508510768
109905299793
114223313384
121b05321815
13c1b1b104c
1469d7511bb
153ce903998
hex24e66e151

9905299793 has 4 divisors (see below), whose sum is σ = 9914725488. Its totient is φ = 9895874100.

The previous prime is 9905299759. The next prime is 9905299799. The reversal of 9905299793 is 3979925099.

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: 3979925099 = 10139405199.

It is a cyclic number.

It is not a de Polignac number, because 9905299793 - 224 = 9888522577 is a prime.

It is a super-2 number, since 2×99052997932 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9905299799) 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, 4711271 + ... + 4713372.

It is an arithmetic number, because the mean of its divisors is an integer number (2478681372).

Almost surely, 29905299793 is an apocalyptic number.

It is an amenable number.

9905299793 is a deficient number, since it is larger than the sum of its proper divisors (9425695).

9905299793 is a wasteful number, since it uses less digits than its factorization.

9905299793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9425694.

The product of its (nonzero) digits is 12400290, while the sum is 62.

The square root of 9905299793 is about 99525.3726091995. The cubic root of 9905299793 is about 2147.6122612766.

The spelling of 9905299793 in words is "nine billion, nine hundred five million, two hundred ninety-nine thousand, seven hundred ninety-three".

Divisors: 1 1051 9424643 9905299793