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130713520 = 2457233417
BaseRepresentation
bin1111100101010…
…00011110110000
3100002221221020111
413302220132300
5231430313040
620545351104
73145021660
oct762503660
9302857214
10130713520
116786a003
1237938494
13211084a2
14135081a0
15b71edea
hex7ca87b0

130713520 has 40 divisors (see below), whose sum is σ = 347325984. Its totient is φ = 44815872.

The previous prime is 130713511. The next prime is 130713523. The reversal of 130713520 is 25317031.

130713520 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 130713491 and 130713500.

It is not an unprimeable number, because it can be changed into a prime (130713523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116149 + ... + 117268.

Almost surely, 2130713520 is an apocalyptic number.

130713520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130713520 is an abundant number, since it is smaller than the sum of its proper divisors (216612464).

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

130713520 is a wasteful number, since it uses less digits than its factorization.

130713520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233437 (or 233431 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 130713520 is about 11433.0013557246. The cubic root of 130713520 is about 507.5048184809.

The spelling of 130713520 in words is "one hundred thirty million, seven hundred thirteen thousand, five hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 560 233417 466834 933668 1167085 1633919 1867336 2334170 3267838 3734672 4668340 6535676 8169595 9336680 13071352 16339190 18673360 26142704 32678380 65356760 130713520