Base | Representation |
---|---|
bin | 1111100101001… |
… | …01100110011000 |
3 | 100002221100001110 |
4 | 13302211212120 |
5 | 231424423340 |
6 | 20545220320 |
7 | 3144642402 |
oct | 762454630 |
9 | 302840043 |
10 | 130701720 |
11 | 67861156 |
12 | 379316a0 |
13 | 21102cc6 |
14 | 13503b72 |
15 | b71b680 |
hex | 7ca5998 |
130701720 has 64 divisors (see below), whose sum is σ = 393660000. Its totient is φ = 34715648.
The previous prime is 130701679. The next prime is 130701731. The reversal of 130701720 is 27107031.
It is a super-2 number, since 2×1307017202 = 34165879221916800, which contains 22 as substring.
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, 30256 + ... + 34304.
Almost surely, 2130701720 is an apocalyptic number.
130701720 is a gapful number since it is divisible by the number (10) 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 130701720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196830000).
130701720 is an abundant number, since it is smaller than the sum of its proper divisors (262958280).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130701720 is a wasteful number, since it uses less digits than its factorization.
130701720 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4332 (or 4328 counting only the distinct ones).
The product of its (nonzero) digits is 294, while the sum is 21.
The square root of 130701720 is about 11432.4852941082. The cubic root of 130701720 is about 507.4895465665.
Adding to 130701720 its reverse (27107031), we get a palindrome (157808751).
The spelling of 130701720 in words is "one hundred thirty million, seven hundred one thousand, seven hundred twenty".
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