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130551320 = 23514592237
BaseRepresentation
bin1111100100000…
…00111000011000
3100002122200202002
413302000320120
5231410120240
620542100132
73143445044
oct762007030
9302580662
10130551320
1167769159
123787a648
132107c703
14134a5024
15b6dbd15
hex7c80e18

130551320 has 32 divisors (see below), whose sum is σ = 294073200. Its totient is φ = 52161408.

The previous prime is 130551319. The next prime is 130551329. The reversal of 130551320 is 23155031.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 130551292 and 130551301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130551329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57242 + ... + 59478.

Almost surely, 2130551320 is an apocalyptic number.

130551320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130551320 is an abundant number, since it is smaller than the sum of its proper divisors (163521880).

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

130551320 is a wasteful number, since it uses less digits than its factorization.

130551320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3707 (or 3703 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 130551320 is about 11425.9056533826. The cubic root of 130551320 is about 507.2948137987.

It can be divided in two parts, 1305 and 51320, that added together give a palindrome (52625).

The spelling of 130551320 in words is "one hundred thirty million, five hundred fifty-one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 1459 2237 2918 4474 5836 7295 8948 11185 11672 14590 17896 22370 29180 44740 58360 89480 3263783 6527566 13055132 16318915 26110264 32637830 65275660 130551320