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130915380 = 22353136971
BaseRepresentation
bin1111100110110…
…01110000110100
3100010100012010210
413303121300310
5232003243010
620553545420
73146522331
oct763316064
9303305123
10130915380
1167997732
1237a15270
132117932b
141355b988
15b75eb20
hex7cd9c34

130915380 has 48 divisors (see below), whose sum is σ = 367786944. Its totient is φ = 34794240.

The previous prime is 130915363. The next prime is 130915381. The reversal of 130915380 is 83519031.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130915381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15295 + ... + 22265.

It is an arithmetic number, because the mean of its divisors is an integer number (7662228).

Almost surely, 2130915380 is an apocalyptic number.

130915380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130915380 is an abundant number, since it is smaller than the sum of its proper divisors (236871564).

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

130915380 is a wasteful number, since it uses less digits than its factorization.

130915380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7296 (or 7294 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 130915380 is about 11441.8259032376. The cubic root of 130915380 is about 507.7659295296.

The spelling of 130915380 in words is "one hundred thirty million, nine hundred fifteen thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 313 626 939 1252 1565 1878 3130 3756 4695 6260 6971 9390 13942 18780 20913 27884 34855 41826 69710 83652 104565 139420 209130 418260 2181923 4363846 6545769 8727692 10909615 13091538 21819230 26183076 32728845 43638460 65457690 130915380