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17969147052 = 2231497428921
BaseRepresentation
bin10000101111000010…
…110110110010101100
31201101022010020201220
4100233002312302230
5243300100201202
612131021103340
71204202141553
oct205702666254
951338106656
1017969147052
11769112a15a
1235959b7b50
131904a1a2bc
14c266b8d9a
15702811abc
hex42f0b6cac

17969147052 has 12 divisors (see below), whose sum is σ = 41928009816. Its totient is φ = 5989715680.

The previous prime is 17969146997. The next prime is 17969147089. The reversal of 17969147052 is 25074196971.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 17969146986 and 17969147004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 748714449 + ... + 748714472.

It is an arithmetic number, because the mean of its divisors is an integer number (3494000818).

Almost surely, 217969147052 is an apocalyptic number.

17969147052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

17969147052 is an abundant number, since it is smaller than the sum of its proper divisors (23958862764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

17969147052 is a wasteful number, since it uses less digits than its factorization.

17969147052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1497428928 (or 1497428926 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 51.

The spelling of 17969147052 in words is "seventeen billion, nine hundred sixty-nine million, one hundred forty-seven thousand, fifty-two".

Divisors: 1 2 3 4 6 12 1497428921 2994857842 4492286763 5989715684 8984573526 17969147052