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2131149480 = 233517759579
BaseRepresentation
bin111111100000110…
…1100001010101000
312111112010121111020
41333001230022220
513331033240410
6551245532440
7103545320535
oct17701541250
95445117436
102131149480
119a3a84169
124b5874120
1327c6a60c5
14163077d8c
15c716ba70
hex7f06c2a8

2131149480 has 32 divisors (see below), whose sum is σ = 6393448800. Its totient is φ = 568306496.

The previous prime is 2131149469. The next prime is 2131149491. The reversal of 2131149480 is 849411312.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2131149469) and next prime (2131149491).

It is a super-2 number, since 2×21311494802 = 9083596212208540800, which contains 22 as substring.

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, 8879670 + ... + 8879909.

It is an arithmetic number, because the mean of its divisors is an integer number (199795275).

Almost surely, 22131149480 is an apocalyptic number.

2131149480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131149480 is an abundant number, since it is smaller than the sum of its proper divisors (4262299320).

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

2131149480 is a wasteful number, since it uses less digits than its factorization.

2131149480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17759593 (or 17759589 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 2131149480 is about 46164.3745760733. The cubic root of 2131149480 is about 1286.8797613297.

The spelling of 2131149480 in words is "two billion, one hundred thirty-one million, one hundred forty-nine thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 17759579 35519158 53278737 71038316 88797895 106557474 142076632 177595790 213114948 266393685 355191580 426229896 532787370 710383160 1065574740 2131149480