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11700430641 = 34197602619
BaseRepresentation
bin10101110010110011…
…00110011100110001
31010012102102110110000
422321121212130301
5142430302240031
65213004500213
7562643006454
oct127131463461
933172373400
1011700430641
114a64651799
12232654a669
131146087a53
147cdd1b49b
154872e93e6
hex2b9666731

11700430641 has 20 divisors (see below), whose sum is σ = 18398340400. Its totient is φ = 7389744696.

The previous prime is 11700430639. The next prime is 11700430661. The reversal of 11700430641 is 14603400711.

It is a happy number.

11700430641 is a `hidden beast` number, since 1 + 17 + 0 + 0 + 4 + 3 + 0 + 641 = 666.

It is not a de Polignac number, because 11700430641 - 21 = 11700430639 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11700430661) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3799771 + ... + 3802848.

It is an arithmetic number, because the mean of its divisors is an integer number (919917020).

Almost surely, 211700430641 is an apocalyptic number.

It is an amenable number.

11700430641 is a deficient number, since it is larger than the sum of its proper divisors (6697909759).

11700430641 is an equidigital number, since it uses as much as digits as its factorization.

11700430641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7602650 (or 7602641 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The spelling of 11700430641 in words is "eleven billion, seven hundred million, four hundred thirty thousand, six hundred forty-one".

Divisors: 1 3 9 19 27 57 81 171 513 1539 7602619 22807857 68423571 144449761 205270713 433349283 615812139 1300047849 3900143547 11700430641