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10689918373 = 39019273967
BaseRepresentation
bin10011111010010101…
…10011010110100101
31000120222222010012201
421331022303112211
5133343104341443
64524430014501
7525622543531
oct117512632645
930528863181
1010689918373
1145961a8992
1220a4047431
131014909ab4
14735a34bc1
1542873d34d
hex27d2b35a5

10689918373 has 4 divisors (see below), whose sum is σ = 10690231360. Its totient is φ = 10689605388.

The previous prime is 10689918361. The next prime is 10689918383. The reversal of 10689918373 is 37381998601.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10689918373 is a prime.

It is a super-2 number, since 2×106899183732 (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 (10689918313) 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 3 ways as a sum of consecutive naturals, for example, 97965 + ... + 176002.

It is an arithmetic number, because the mean of its divisors is an integer number (2672557840).

Almost surely, 210689918373 is an apocalyptic number.

It is an amenable number.

10689918373 is a deficient number, since it is larger than the sum of its proper divisors (312987).

10689918373 is an equidigital number, since it uses as much as digits as its factorization.

10689918373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312986.

The product of its (nonzero) digits is 1959552, while the sum is 55.

The spelling of 10689918373 in words is "ten billion, six hundred eighty-nine million, nine hundred eighteen thousand, three hundred seventy-three".

Divisors: 1 39019 273967 10689918373