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6664130240 = 26559352973
BaseRepresentation
bin1100011010011011…
…01000111011000000
3122012102201220002112
412031031220323000
5102122004131430
63021135234452
7324100113065
oct61515507300
918172656075
106664130240
11290a800759
12135b978a28
13822859541
144730cac6c
152900c2195
hex18d368ec0

6664130240 has 56 divisors (see below), whose sum is σ = 16137971280. Its totient is φ = 2620464128.

The previous prime is 6664130227. The next prime is 6664130261. The reversal of 6664130240 is 420314666.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 6664130197 and 6664130206.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157607 + ... + 195366.

Almost surely, 26664130240 is an apocalyptic number.

It is an amenable number.

6664130240 is an abundant number, since it is smaller than the sum of its proper divisors (9473841040).

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

6664130240 is a wasteful number, since it uses less digits than its factorization.

6664130240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353049 (or 353039 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 6664130240 is about 81634.1242373555. The cubic root of 6664130240 is about 1881.8333405973.

The spelling of 6664130240 in words is "six billion, six hundred sixty-four million, one hundred thirty thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 59 64 80 118 160 236 295 320 472 590 944 1180 1888 2360 3776 4720 9440 18880 352973 705946 1411892 1764865 2823784 3529730 5647568 7059460 11295136 14118920 20825407 22590272 28237840 41650814 56475680 83301628 104127035 112951360 166603256 208254070 333206512 416508140 666413024 833016280 1332826048 1666032560 3332065120 6664130240