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130680958 = 265340479
BaseRepresentation
bin1111100101000…
…00100001111110
3100002220021120111
413302200201332
5231423242313
620544540234
73144525022
oct762404176
9302807514
10130680958
11678475a1
123792167a
13210c6715
14134da382
15b71543d
hex7ca087e

130680958 has 4 divisors (see below), whose sum is σ = 196021440. Its totient is φ = 65340478.

The previous prime is 130680947. The next prime is 130680959. The reversal of 130680958 is 859086031.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×1306809583 (a number of 25 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 130680958.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130680959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32670238 + ... + 32670241.

It is an arithmetic number, because the mean of its divisors is an integer number (49005360).

Almost surely, 2130680958 is an apocalyptic number.

130680958 is a deficient number, since it is larger than the sum of its proper divisors (65340482).

130680958 is an equidigital number, since it uses as much as digits as its factorization.

130680958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65340481.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 130680958 is about 11431.5772315110. The cubic root of 130680958 is about 507.4626735309.

The spelling of 130680958 in words is "one hundred thirty million, six hundred eighty thousand, nine hundred fifty-eight".

Divisors: 1 2 65340479 130680958