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6520052016 = 243379191047
BaseRepresentation
bin1100001001010000…
…00001100100110000
3121211101121221221000
412010220001210300
5101323113131031
62554551202000
7320400346002
oct60450014460
917741557830
106520052016
112846443645
12131b676300
137cba51b5a
1445bd04372
152826123e6
hex184a01930

6520052016 has 80 divisors (see below), whose sum is σ = 18951961600. Its totient is φ = 2145828672.

The previous prime is 6520052009. The next prime is 6520052023. The reversal of 6520052016 is 6102500256.

6520052016 is a `hidden beast` number, since 652 + 0 + 0 + 5 + 2 + 0 + 1 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (6520052009) and next prime (6520052023).

It is a super-2 number, since 2×65200520162 = 85022156582691328512, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61396 + ... + 129651.

It is an arithmetic number, because the mean of its divisors is an integer number (236899520).

Almost surely, 26520052016 is an apocalyptic number.

It is an amenable number.

6520052016 is an abundant number, since it is smaller than the sum of its proper divisors (12431909584).

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

6520052016 is a wasteful number, since it uses less digits than its factorization.

6520052016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191143 (or 191131 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 6520052016 is about 80746.8390464915. The cubic root of 6520052016 is about 1868.1726948692.

The spelling of 6520052016 in words is "six billion, five hundred twenty million, fifty-two thousand, sixteen".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 79 108 144 158 216 237 316 432 474 632 711 948 1264 1422 1896 2133 2844 3792 4266 5688 8532 11376 17064 34128 191047 382094 573141 764188 1146282 1528376 1719423 2292564 3056752 3438846 4585128 5158269 6877692 9170256 10316538 13755384 15092713 20633076 27510768 30185426 41266152 45278139 60370852 82532304 90556278 120741704 135834417 181112556 241483408 271668834 362225112 407503251 543337668 724450224 815006502 1086675336 1630013004 2173350672 3260026008 6520052016