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130315233 = 343438411
BaseRepresentation
bin1111100010001…
…11001111100001
3100002012200220010
413301013033201
5231330041413
620533035133
73141442536
oct761071741
9302180803
10130315233
1167617844
1237785aa9
1320cc9109
1413442d8d
15b691dc3
hex7c473e1

130315233 has 4 divisors (see below), whose sum is σ = 173753648. Its totient is φ = 86876820.

The previous prime is 130315231. The next prime is 130315249. The reversal of 130315233 is 332513031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 130315233 - 21 = 130315231 is a prime.

It is a super-3 number, since 3×1303152333 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130315231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21719203 + ... + 21719208.

It is an arithmetic number, because the mean of its divisors is an integer number (43438412).

Almost surely, 2130315233 is an apocalyptic number.

It is an amenable number.

130315233 is a deficient number, since it is larger than the sum of its proper divisors (43438415).

130315233 is an equidigital number, since it uses as much as digits as its factorization.

130315233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43438414.

The product of its (nonzero) digits is 810, while the sum is 21.

The square root of 130315233 is about 11415.5697623903. The cubic root of 130315233 is about 506.9888345677.

Adding to 130315233 its reverse (332513031), we get a palindrome (462828264).

The spelling of 130315233 in words is "one hundred thirty million, three hundred fifteen thousand, two hundred thirty-three".

Divisors: 1 3 43438411 130315233