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8513428952 = 2372191143049
BaseRepresentation
bin1111110110111000…
…01001110111011000
3210222022112000000102
413323130021313120
5114413414211302
63524440154532
7420653644400
oct77334116730
923868460012
108513428952
1136796771a6
121797168a48
13a58a1a732
145aa957800
1534c617702
hex1fb709dd8

8513428952 has 48 divisors (see below), whose sum is σ = 19546155000. Its totient is φ = 3456577152.

The previous prime is 8513428951. The next prime is 8513428961. The reversal of 8513428952 is 2598243158.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 8513428897 and 8513428906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8513428951) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 564077 + ... + 578972.

Almost surely, 28513428952 is an apocalyptic number.

It is an amenable number.

8513428952 is an abundant number, since it is smaller than the sum of its proper divisors (11032726048).

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

8513428952 is a wasteful number, since it uses less digits than its factorization.

8513428952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143088 (or 1143077 counting only the distinct ones).

The product of its digits is 691200, while the sum is 47.

The square root of 8513428952 is about 92268.2445481651. The cubic root of 8513428952 is about 2041.9017374326.

The spelling of 8513428952 in words is "eight billion, five hundred thirteen million, four hundred twenty-eight thousand, nine hundred fifty-two".

Divisors: 1 2 4 7 8 14 19 28 38 49 56 76 98 133 152 196 266 392 532 931 1064 1862 3724 7448 1143049 2286098 4572196 8001343 9144392 16002686 21717931 32005372 43435862 56009401 64010744 86871724 112018802 152025517 173743448 224037604 304051034 448075208 608102068 1064178619 1216204136 2128357238 4256714476 8513428952