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130451328 = 2732722311
BaseRepresentation
bin1111100011010…
…00011110000000
3100002110121120200
413301220132000
5231343420303
620540005200
73142550400
oct761503600
9302417520
10130451328
1167700017
1237830800
1321046047
141347a800
15b6bc3a3
hex7c68780

130451328 has 144 divisors (see below), whose sum is σ = 436863960. Its totient is φ = 37255680.

The previous prime is 130451327. The next prime is 130451329. The reversal of 130451328 is 823154031.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (130451327) and next prime (130451329).

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130451327) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 55293 + ... + 57603.

Almost surely, 2130451328 is an apocalyptic number.

130451328 is a gapful number since it is divisible by the number (18) 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 130451328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218431980).

130451328 is an abundant number, since it is smaller than the sum of its proper divisors (306412632).

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

130451328 is a wasteful number, since it uses less digits than its factorization.

130451328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2345 (or 2323 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 130451328 is about 11421.5291445585. The cubic root of 130451328 is about 507.1652647981.

The spelling of 130451328 in words is "one hundred thirty million, four hundred fifty-one thousand, three hundred twenty-eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 49 56 63 64 72 84 96 98 112 126 128 144 147 168 192 196 224 252 288 294 336 384 392 441 448 504 576 588 672 784 882 896 1008 1152 1176 1344 1568 1764 2016 2311 2352 2688 3136 3528 4032 4622 4704 6272 6933 7056 8064 9244 9408 13866 14112 16177 18488 18816 20799 27732 28224 32354 36976 41598 48531 55464 56448 64708 73952 83196 97062 110928 113239 129416 145593 147904 166392 194124 221856 226478 258832 291186 295808 332784 339717 388248 443712 452956 517664 582372 665568 679434 776496 887424 905912 1019151 1035328 1164744 1331136 1358868 1552992 1811824 2038302 2070656 2329488 2662272 2717736 3105984 3623648 4076604 4658976 5435472 6211968 7247296 8153208 9317952 10870944 14494592 16306416 18635904 21741888 32612832 43483776 65225664 130451328