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130381152 = 25311311397
BaseRepresentation
bin1111100010101…
…11010101100000
3100002100001022120
413301113111200
5231334144102
620534304240
73142135656
oct761272540
9302301276
10130381152
1167662320
12377b8080
1321020115
141345cdd6
15b6a66bc
hex7c57560

130381152 has 96 divisors (see below), whose sum is σ = 375508224. Its totient is φ = 39283200.

The previous prime is 130381123. The next prime is 130381157. The reversal of 130381152 is 251183031.

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 (130381157) 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, 328218 + ... + 328614.

It is an arithmetic number, because the mean of its divisors is an integer number (3911544).

Almost surely, 2130381152 is an apocalyptic number.

130381152 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 130381152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187754112).

130381152 is an abundant number, since it is smaller than the sum of its proper divisors (245127072).

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

130381152 is a wasteful number, since it uses less digits than its factorization.

130381152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732 (or 724 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 130381152 is about 11418.4566382677. The cubic root of 130381152 is about 507.0743056793.

The spelling of 130381152 in words is "one hundred thirty million, three hundred eighty-one thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 66 88 96 132 176 264 311 352 397 528 622 794 933 1056 1191 1244 1588 1866 2382 2488 3176 3421 3732 4367 4764 4976 6352 6842 7464 8734 9528 9952 10263 12704 13101 13684 14928 17468 19056 20526 26202 27368 29856 34936 38112 41052 52404 54736 69872 82104 104808 109472 123467 139744 164208 209616 246934 328416 370401 419232 493868 740802 987736 1358137 1481604 1975472 2716274 2963208 3950944 4074411 5432548 5926416 8148822 10865096 11852832 16297644 21730192 32595288 43460384 65190576 130381152