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8831939972164 = 221087213672
BaseRepresentation
bin1000000010000101100010…
…1001010000110001000100
31011021022210002012211201221
42000201120221100301010
52124200303113102124
630441200500530124
71601041464050521
oct200413051206104
934238702184657
108831939972164
1128a5671958841
12ba78329b0944
134c0b04b2343a
1422767a960148
15104b14337ce4
hex80858a50c44

8831939972164 has 27 divisors (see below), whose sum is σ = 15481452010143. Its totient is φ = 4408680018408.

The previous prime is 8831939972159. The next prime is 8831939972171. The reversal of 8831939972164 is 4612799391388.

It is a happy number.

The square root of 8831939972164 is 2971858.

It is a perfect power (a square), and thus also a powerful number.

It is a Smith number, since the sum of its digits (70) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8831939972093 and 8831939972102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6460818609 + ... + 6460819975.

Almost surely, 28831939972164 is an apocalyptic number.

8831939972164 is the 2971858-th square number.

It is an amenable number.

8831939972164 is a deficient number, since it is larger than the sum of its proper divisors (6649512037979).

8831939972164 is an frugal number, since it uses more digits than its factorization.

8831939972164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4912 (or 2456 counting only the distinct ones).

The product of its digits is 141087744, while the sum is 70.

The spelling of 8831939972164 in words is "eight trillion, eight hundred thirty-one billion, nine hundred thirty-nine million, nine hundred seventy-two thousand, one hundred sixty-four".

Divisors: 1 2 4 1087 1367 2174 2734 4348 5468 1181569 1485929 1868689 2363138 2971858 3737378 4726276 5943716 7474756 1615204823 2031264943 3230409646 4062529886 6460819292 8125059772 2207984993041 4415969986082 8831939972164