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130748472 = 23332920873
BaseRepresentation
bin1111100101100…
…01000000111000
3100010000201012000
413302301000320
5231432422342
620550221000
73145225611
oct762610070
9303021160
10130748472
1167893298
1237954760
132111b37a
1413516c08
15b72a44c
hex7cb1038

130748472 has 64 divisors (see below), whose sum is σ = 375732000. Its totient is φ = 42077952.

The previous prime is 130748461. The next prime is 130748473. The reversal of 130748472 is 274847031.

It is a happy number.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130748473) 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, 4173 + ... + 16700.

Almost surely, 2130748472 is an apocalyptic number.

130748472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

130748472 is an abundant number, since it is smaller than the sum of its proper divisors (244983528).

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

130748472 is a wasteful number, since it uses less digits than its factorization.

130748472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20917 (or 20907 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 130748472 is about 11434.5298110591. The cubic root of 130748472 is about 507.5500490167.

The spelling of 130748472 in words is "one hundred thirty million, seven hundred forty-eight thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 29 36 54 58 72 87 108 116 174 216 232 261 348 522 696 783 1044 1566 2088 3132 6264 20873 41746 62619 83492 125238 166984 187857 250476 375714 500952 563571 605317 751428 1127142 1210634 1502856 1815951 2254284 2421268 3631902 4508568 4842536 5447853 7263804 10895706 14527608 16343559 21791412 32687118 43582824 65374236 130748472