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130623253 = 418935797
BaseRepresentation
bin1111100100100…
…10011100010101
3100002210100102021
413302102130111
5231414421003
620543413141
73144164545
oct762223425
9302710367
10130623253
1167808202
12378b41b1
13210a6387
14134c3325
15b7032bd
hex7c92715

130623253 has 8 divisors (see below), whose sum is σ = 135316440. Its totient is φ = 126001920.

The previous prime is 130623239. The next prime is 130623263. The reversal of 130623253 is 352326031.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12096484 + 118526769 = 3478^2 + 10887^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 130623253 - 213 = 130615061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130623263) 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, 14250 + ... + 21547.

It is an arithmetic number, because the mean of its divisors is an integer number (16914555).

Almost surely, 2130623253 is an apocalyptic number.

It is an amenable number.

130623253 is a deficient number, since it is larger than the sum of its proper divisors (4693187).

130623253 is an equidigital number, since it uses as much as digits as its factorization.

130623253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35927.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 130623253 is about 11429.0530228886. The cubic root of 130623253 is about 507.3879688321.

Adding to 130623253 its reverse (352326031), we get a palindrome (482949284).

The spelling of 130623253 in words is "one hundred thirty million, six hundred twenty-three thousand, two hundred fifty-three".

Divisors: 1 41 89 3649 35797 1467677 3185933 130623253