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130023015 = 358668201
BaseRepresentation
bin1111011111111…
…11111001100111
3100001122212001020
413233333321213
5231241214030
620522502223
73136114563
oct757777147
9301585036
10130023015
1167438241
1237664973
1320c260c5
14133a86a3
15b635510
hex7bffe67

130023015 has 8 divisors (see below), whose sum is σ = 208036848. Its totient is φ = 69345600.

The previous prime is 130023007. The next prime is 130023031. The reversal of 130023015 is 510320031.

It is a happy number.

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

It is not a de Polignac number, because 130023015 - 23 = 130023007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 8668201 = 130023015 / (1 + 3 + 0 + 0 + 2 + 3 + 0 + 1 + 5).

It is a junction number, because it is equal to n+sod(n) for n = 130022985 and 130023003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4334086 + ... + 4334115.

It is an arithmetic number, because the mean of its divisors is an integer number (26004606).

Almost surely, 2130023015 is an apocalyptic number.

130023015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

130023015 is a deficient number, since it is larger than the sum of its proper divisors (78013833).

130023015 is an equidigital number, since it uses as much as digits as its factorization.

130023015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8668209.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 130023015 is about 11402.7634808409. The cubic root of 130023015 is about 506.6095948431.

Adding to 130023015 its reverse (510320031), we get a palindrome (640343046).

The spelling of 130023015 in words is "one hundred thirty million, twenty-three thousand, fifteen".

Divisors: 1 3 5 15 8668201 26004603 43341005 130023015