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130043448 = 23331931687
BaseRepresentation
bin1111100000001…
…00111000111000
3100001200220002000
413300010320320
5231242342243
620523141000
73136231263
oct760047070
9301626060
10130043448
1167451627
1237674760
1320c324b2
14133b1cda
15b63b5d3
hex7c04e38

130043448 has 64 divisors (see below), whose sum is σ = 380256000. Its totient is φ = 41065056.

The previous prime is 130043423. The next prime is 130043479. The reversal of 130043448 is 844340031.

It is a super-2 number, since 2×1300434482 = 33822596735457408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11740 + ... + 19947.

It is an arithmetic number, because the mean of its divisors is an integer number (5941500).

Almost surely, 2130043448 is an apocalyptic number.

130043448 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

130043448 is an abundant number, since it is smaller than the sum of its proper divisors (250212552).

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

130043448 is a wasteful number, since it uses less digits than its factorization.

130043448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31721 (or 31711 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 130043448 is about 11403.6594126622. The cubic root of 130043448 is about 506.6361312007.

Adding to 130043448 its reverse (844340031), we get a palindrome (974383479).

The spelling of 130043448 in words is "one hundred thirty million, forty-three thousand, four hundred forty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 19 24 27 36 38 54 57 72 76 108 114 152 171 216 228 342 456 513 684 1026 1368 2052 4104 31687 63374 95061 126748 190122 253496 285183 380244 570366 602053 760488 855549 1140732 1204106 1711098 1806159 2281464 2408212 3422196 3612318 4816424 5418477 6844392 7224636 10836954 14449272 16255431 21673908 32510862 43347816 65021724 130043448