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8972108158 = 213877393479
BaseRepresentation
bin10000101101100011…
…11000000101111110
3212011021121022121011
420112301320011332
5121333324430113
64042143225434
7435223442506
oct102661700576
925137538534
108972108158
113894580722
1218a48a827a
13acca65a50
14611834a06
15377a1c63d
hex216c7817e

8972108158 has 16 divisors (see below), whose sum is σ = 14509968480. Its totient is φ = 4136240736.

The previous prime is 8972108129. The next prime is 8972108179. The reversal of 8972108158 is 8518012798.

8972108158 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 173938 + ... + 219541.

It is an arithmetic number, because the mean of its divisors is an integer number (906873030).

Almost surely, 28972108158 is an apocalyptic number.

8972108158 is a deficient number, since it is larger than the sum of its proper divisors (5537860322).

8972108158 is a wasteful number, since it uses less digits than its factorization.

8972108158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394371.

The product of its (nonzero) digits is 322560, while the sum is 49.

The square root of 8972108158 is about 94721.2128195158. The cubic root of 8972108158 is about 2077.9328079966.

The spelling of 8972108158 in words is "eight billion, nine hundred seventy-two million, one hundred eight thousand, one hundred fifty-eight".

Divisors: 1 2 13 26 877 1754 11401 22802 393479 786958 5115227 10230454 345081083 690162166 4486054079 8972108158