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131084620 = 22517222679
BaseRepresentation
bin1111101000000…
…11000101001100
3100010122210021221
413310003011030
5232024201440
621001333124
73151125622
oct764030514
9303583257
10131084620
1167aa28a7
1237a971a4
1321208384
14135a3512
15b794d4a
hex7d0314c

131084620 has 36 divisors (see below), whose sum is σ = 292435920. Its totient is φ = 49347328.

The previous prime is 131084617. The next prime is 131084623. The reversal of 131084620 is 26480131.

131084620 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (131084617) and next prime (131084623).

It is not an unprimeable number, because it can be changed into a prime (131084623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5560 + ... + 17119.

It is an arithmetic number, because the mean of its divisors is an integer number (8123220).

Almost surely, 2131084620 is an apocalyptic number.

131084620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131084620 is an abundant number, since it is smaller than the sum of its proper divisors (161351300).

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

131084620 is a wasteful number, since it uses less digits than its factorization.

131084620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22722 (or 22703 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 131084620 is about 11449.2191873507. The cubic root of 131084620 is about 507.9846390048.

The spelling of 131084620 in words is "one hundred thirty-one million, eighty-four thousand, six hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 289 340 578 1156 1445 2890 5780 22679 45358 90716 113395 226790 385543 453580 771086 1542172 1927715 3855430 6554231 7710860 13108462 26216924 32771155 65542310 131084620