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20132690830 = 2572377120997
BaseRepresentation
bin10010110000000000…
…000111101110001110
31220222002012122211221
4102300000013232032
5312212432101310
613125425233554
71311623022430
oct226000075616
956862178757
1020132690830
1185a141966a
123a9a4928ba
131b8b026115
14d8db86650
157cc72bada
hex4b0007b8e

20132690830 has 32 divisors (see below), whose sum is σ = 41433587136. Its totient is φ = 6899675904.

The previous prime is 20132690821. The next prime is 20132690839. The reversal of 20132690830 is 3809623102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20132690821) and next prime (20132690839).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20132690839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105892 + ... + 226888.

It is an arithmetic number, because the mean of its divisors is an integer number (1294799598).

Almost surely, 220132690830 is an apocalyptic number.

20132690830 is an abundant number, since it is smaller than the sum of its proper divisors (21300896306).

20132690830 is a wasteful number, since it uses less digits than its factorization.

20132690830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123388.

The product of its (nonzero) digits is 15552, while the sum is 34.

The spelling of 20132690830 in words is "twenty billion, one hundred thirty-two million, six hundred ninety thousand, eight hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 2377 4754 11885 16639 23770 33278 83195 120997 166390 241994 604985 846979 1209970 1693958 4234895 8469790 287609869 575219738 1438049345 2013269083 2876098690 4026538166 10066345415 20132690830