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130002321 = 379548533
BaseRepresentation
bin1111011111110…
…10110110010001
3100001121210122210
413233322312101
5231240033241
620522222333
73136000341
oct757726621
9301553583
10130002321
1167423739
12376549a9
1320c19867
14133a0d21
15b62e316
hex7bfad91

130002321 has 8 divisors (see below), whose sum is σ = 175530880. Its totient is φ = 85570992.

The previous prime is 130002317. The next prime is 130002343. The reversal of 130002321 is 123200031.

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 130002321 - 22 = 130002317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130002297 and 130002306.

It is not an unprimeable number, because it can be changed into a prime (130002361) 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, 274030 + ... + 274503.

It is an arithmetic number, because the mean of its divisors is an integer number (21941360).

Almost surely, 2130002321 is an apocalyptic number.

It is an amenable number.

130002321 is a deficient number, since it is larger than the sum of its proper divisors (45528559).

130002321 is an equidigital number, since it uses as much as digits as its factorization.

130002321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548615.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 130002321 is about 11401.8560331202. The cubic root of 130002321 is about 506.5827166908.

Adding to 130002321 its reverse (123200031), we get a palindrome (253202352).

The spelling of 130002321 in words is "one hundred thirty million, two thousand, three hundred twenty-one".

Divisors: 1 3 79 237 548533 1645599 43334107 130002321