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2137315320 = 233257319911
BaseRepresentation
bin111111101100100…
…1101011111111000
312111221201212102200
41333121031133320
513334123042240
6552030030200
7103651611000
oct17731153770
95457655380
102137315320
119a75056a8
124b7948360
13280a5472a
14163c01000
15c7988930
hex7f64d7f8

2137315320 has 384 divisors, whose sum is σ = 8536320000. Its totient is φ = 462309120.

The previous prime is 2137315307. The next prime is 2137315351. The reversal of 2137315320 is 235137312.

2137315320 is a `hidden beast` number, since 21 + 3 + 7 + 315 + 320 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2345665 + ... + 2346575.

It is an arithmetic number, because the mean of its divisors is an integer number (22230000).

Almost surely, 22137315320 is an apocalyptic number.

2137315320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2137315320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4268160000).

2137315320 is an abundant number, since it is smaller than the sum of its proper divisors (6399004680).

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

2137315320 is a wasteful number, since it uses less digits than its factorization.

2137315320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968 (or 947 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 2137315320 is about 46231.1077089875. The cubic root of 2137315320 is about 1288.1196328702.

The spelling of 2137315320 in words is "two billion, one hundred thirty-seven million, three hundred fifteen thousand, three hundred twenty".