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130545312 = 25317411951
BaseRepresentation
bin1111100011111…
…11011010100000
3100002122101111120
413301333122200
5231404422222
620542012240
73143421402
oct761773240
9302571446
10130545312
1167764697
1237877080
1321079a61
14134a2b72
15b6da15c
hex7c7f6a0

130545312 has 96 divisors (see below), whose sum is σ = 371879424. Its totient is φ = 39936000.

The previous prime is 130545301. The next prime is 130545313. The reversal of 130545312 is 213545031.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130545313) 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, 65937 + ... + 67887.

It is an arithmetic number, because the mean of its divisors is an integer number (3873744).

Almost surely, 2130545312 is an apocalyptic number.

130545312 is a gapful number since it is divisible by the number (12) 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 130545312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185939712).

130545312 is an abundant number, since it is smaller than the sum of its proper divisors (241334112).

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

130545312 is a wasteful number, since it uses less digits than its factorization.

130545312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022 (or 2014 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 130545312 is about 11425.6427390322. The cubic root of 130545312 is about 507.2870317402.

The spelling of 130545312 in words is "one hundred thirty million, five hundred forty-five thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 17 24 32 34 41 48 51 68 82 96 102 123 136 164 204 246 272 328 408 492 544 656 697 816 984 1312 1394 1632 1951 1968 2091 2788 3902 3936 4182 5576 5853 7804 8364 11152 11706 15608 16728 22304 23412 31216 33167 33456 46824 62432 66334 66912 79991 93648 99501 132668 159982 187296 199002 239973 265336 319964 398004 479946 530672 639928 796008 959892 1061344 1279856 1359847 1592016 1919784 2559712 2719694 3184032 3839568 4079541 5439388 7679136 8159082 10878776 16318164 21757552 32636328 43515104 65272656 130545312