Base | Representation |
---|---|
bin | 1111100101100… |
… | …01000000111000 |
3 | 100010000201012000 |
4 | 13302301000320 |
5 | 231432422342 |
6 | 20550221000 |
7 | 3145225611 |
oct | 762610070 |
9 | 303021160 |
10 | 130748472 |
11 | 67893298 |
12 | 37954760 |
13 | 2111b37a |
14 | 13516c08 |
15 | b72a44c |
hex | 7cb1038 |
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".
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