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130574221 = 376157853
BaseRepresentation
bin1111100100001…
…10011110001101
3100002200212011021
413302012132031
5231411333341
620542354141
73143601601
oct762063615
9302625137
10130574221
1167784388
123788b951
1321089c6b
14134ad501
15b6e39d1
hex7c8678d

130574221 has 8 divisors (see below), whose sum is σ = 136304024. Its totient is φ = 124960320.

The previous prime is 130574209. The next prime is 130574239. The reversal of 130574221 is 122475031.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1297321 + 129276900 = 1139^2 + 11370^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 130574221 - 217 = 130443149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130574291) 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, 26670 + ... + 31183.

It is an arithmetic number, because the mean of its divisors is an integer number (17038003).

Almost surely, 2130574221 is an apocalyptic number.

It is an amenable number.

130574221 is a deficient number, since it is larger than the sum of its proper divisors (5729803).

130574221 is an equidigital number, since it uses as much as digits as its factorization.

130574221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57951.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 130574221 is about 11426.9077619450. The cubic root of 130574221 is about 507.3244748783.

The spelling of 130574221 in words is "one hundred thirty million, five hundred seventy-four thousand, two hundred twenty-one".

Divisors: 1 37 61 2257 57853 2140561 3529033 130574221