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230012917979 = 1317693301383
BaseRepresentation
bin1101011000110111010…
…1101001100011011011
3210222200222212220000012
43112031311221203123
512232031301333404
6253355543032135
722421635354415
oct3261565514333
9728628786005
10230012917979
1189603328749
12386b2a3b64b
13188c8288040
14b1c012d9b5
155eb32a0a6e
hex358dd698db

230012917979 has 4 divisors (see below), whose sum is σ = 247706219376. Its totient is φ = 212319616584.

The previous prime is 230012917949. The next prime is 230012917993. The reversal of 230012917979 is 979719210032.

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

It is a cyclic number.

It is not a de Polignac number, because 230012917979 - 28 = 230012917723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230012917949) 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, 8846650679 + ... + 8846650704.

It is an arithmetic number, because the mean of its divisors is an integer number (61926554844).

Almost surely, 2230012917979 is an apocalyptic number.

230012917979 is a deficient number, since it is larger than the sum of its proper divisors (17693301397).

230012917979 is a wasteful number, since it uses less digits than its factorization.

230012917979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17693301396.

The product of its (nonzero) digits is 428652, while the sum is 50.

The spelling of 230012917979 in words is "two hundred thirty billion, twelve million, nine hundred seventeen thousand, nine hundred seventy-nine".

Divisors: 1 13 17693301383 230012917979