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11680132820 = 2255031161047
BaseRepresentation
bin10101110000011000…
…01010111011010100
31010011000020020001212
422320030022323110
5142410103222240
65211001440552
7562305330236
oct127014127324
933130206055
1011680132820
114a54148734
12231b7a0158
131141acbbc5
147cb356256
1548563a165
hex2b830aed4

11680132820 has 24 divisors (see below), whose sum is σ = 24577064064. Its totient is φ = 4662760736.

The previous prime is 11680132819. The next prime is 11680132843. The reversal of 11680132820 is 2823108611.

It is a congruent number.

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, 570464 + ... + 590583.

It is an arithmetic number, because the mean of its divisors is an integer number (1024044336).

Almost surely, 211680132820 is an apocalyptic number.

11680132820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11680132820 is an abundant number, since it is smaller than the sum of its proper divisors (12896931244).

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

11680132820 is a wasteful number, since it uses less digits than its factorization.

11680132820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161559 (or 1161557 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The spelling of 11680132820 in words is "eleven billion, six hundred eighty million, one hundred thirty-two thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 503 1006 2012 2515 5030 10060 1161047 2322094 4644188 5805235 11610470 23220940 584006641 1168013282 2336026564 2920033205 5840066410 11680132820