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130122231 = 358017477
BaseRepresentation
bin1111100000110…
…00000111110111
3100001211220010220
413300120013313
5231302402411
620524545423
73140010051
oct760300767
9301756126
10130122231
11674a5838
12376b2273
1320c5c305
14133d28d1
15b654b06
hex7c181f7

130122231 has 8 divisors (see below), whose sum is σ = 173549424. Its totient is φ = 86721600.

The previous prime is 130122227. The next prime is 130122253. The reversal of 130122231 is 132221031.

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

It is not a de Polignac number, because 130122231 - 22 = 130122227 is a prime.

It is a super-3 number, since 3×1301222313 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 130122231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130122331) 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, 13665 + ... + 21141.

It is an arithmetic number, because the mean of its divisors is an integer number (21693678).

Almost surely, 2130122231 is an apocalyptic number.

130122231 is a deficient number, since it is larger than the sum of its proper divisors (43427193).

130122231 is an equidigital number, since it uses as much as digits as its factorization.

130122231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13281.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 130122231 is about 11407.1131755585. The cubic root of 130122231 is about 506.7384207491.

Adding to 130122231 its reverse (132221031), we get a palindrome (262343262).

It can be divided in two parts, 1301 and 22231, that added together give a palindrome (23532).

The spelling of 130122231 in words is "one hundred thirty million, one hundred twenty-two thousand, two hundred thirty-one".

Divisors: 1 3 5801 7477 17403 22431 43374077 130122231