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130706000 = 245365353
BaseRepresentation
bin1111100101001…
…10101001010000
3100002221112220222
413302212221100
5231430043000
620545252212
73144661025
oct762465120
9302845828
10130706000
1167864397
1237934068
1321104c39
141350554c
15b71ca85
hex7ca6a50

130706000 has 40 divisors (see below), whose sum is σ = 316051944. Its totient is φ = 52281600.

The previous prime is 130705999. The next prime is 130706011. The reversal of 130706000 is 607031.

It can be written as a sum of positive squares in 4 ways, for example, as 15376 + 130690624 = 124^2 + 11432^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 130706000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30677 + ... + 34676.

Almost surely, 2130706000 is an apocalyptic number.

130706000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130706000 is an abundant number, since it is smaller than the sum of its proper divisors (185345944).

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

130706000 is an equidigital number, since it uses as much as digits as its factorization.

130706000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65376 (or 65360 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 130706000 is about 11432.6724784715. The cubic root of 130706000 is about 507.4950859773.

The spelling of 130706000 in words is "one hundred thirty million, seven hundred six thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 1000 2000 65353 130706 261412 326765 522824 653530 1045648 1307060 1633825 2614120 3267650 5228240 6535300 8169125 13070600 16338250 26141200 32676500 65353000 130706000