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8971502668 = 2215919140893
BaseRepresentation
bin10000101101011111…
…00100010001001100
3212011020110120000121
420112233210101030
5121333201041133
64042122234324
7435215341312
oct102657442114
925136416017
108971502668
1138941a7817
1218a46559a4
13acc8b327b
146117180b2
1537794d02d
hex216be444c

8971502668 has 12 divisors (see below), whose sum is σ = 15701227360. Its totient is φ = 4485437712.

The previous prime is 8971502663. The next prime is 8971502693. The reversal of 8971502668 is 8662051798.

It is a super-2 number, since 2×89715026682 (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (8971502663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6771 + ... + 134122.

Almost surely, 28971502668 is an apocalyptic number.

It is an amenable number.

8971502668 is a deficient number, since it is larger than the sum of its proper divisors (6729724692).

8971502668 is a wasteful number, since it uses less digits than its factorization.

8971502668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156816 (or 156814 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 52.

The square root of 8971502668 is about 94718.0165966328. The cubic root of 8971502668 is about 2077.8860632844.

The spelling of 8971502668 in words is "eight billion, nine hundred seventy-one million, five hundred two thousand, six hundred sixty-eight".

Divisors: 1 2 4 15919 31838 63676 140893 281786 563572 2242875667 4485751334 8971502668