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10399187869 = 72364591229
BaseRepresentation
bin10011010111101011…
…10000001110011101
3222211201220110221021
421223311300032131
5132244143002434
64435522404141
7515462431660
oct115365601635
928751813837
1010399187869
114457085844
122022800651
13c99606205
147091956d7
1540ce60cb4
hex26bd7039d

10399187869 has 8 divisors (see below), whose sum is σ = 12401516160. Its totient is φ = 8526042096.

The previous prime is 10399187849. The next prime is 10399187941. The reversal of 10399187869 is 96878199301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10399187869 is a prime.

It is a super-2 number, since 2×103991878692 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10399187819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32295454 + ... + 32295775.

It is an arithmetic number, because the mean of its divisors is an integer number (1550189520).

Almost surely, 210399187869 is an apocalyptic number.

It is an amenable number.

10399187869 is a deficient number, since it is larger than the sum of its proper divisors (2002328291).

10399187869 is an equidigital number, since it uses as much as digits as its factorization.

10399187869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64591259.

The product of its (nonzero) digits is 5878656, while the sum is 61.

The spelling of 10399187869 in words is "ten billion, three hundred ninety-nine million, one hundred eighty-seven thousand, eight hundred sixty-nine".

Divisors: 1 7 23 161 64591229 452138603 1485598267 10399187869