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130221454 = 2115919157
BaseRepresentation
bin1111100001100…
…00010110001110
3100002000221020211
413300300112032
5231314041304
620531033034
73140602246
oct760602616
9302027224
10130221454
1167563340
123773b77a
1320c9551c
141341ab26
15b674204
hex7c3058e

130221454 has 8 divisors (see below), whose sum is σ = 213089688. Its totient is φ = 59191560.

The previous prime is 130221451. The next prime is 130221457. The reversal of 130221454 is 454122031.

It is an interprime number because it is at equal distance from previous prime (130221451) and next prime (130221457).

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 5919157 = 130221454 / (1 + 3 + 0 + 2 + 2 + 1 + 4 + 5 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130221451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2959557 + ... + 2959600.

It is an arithmetic number, because the mean of its divisors is an integer number (26636211).

Almost surely, 2130221454 is an apocalyptic number.

130221454 is a deficient number, since it is larger than the sum of its proper divisors (82868234).

130221454 is a wasteful number, since it uses less digits than its factorization.

130221454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5919170.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 130221454 is about 11411.4615190167. The cubic root of 130221454 is about 506.8671902689.

Adding to 130221454 its reverse (454122031), we get a palindrome (584343485).

The spelling of 130221454 in words is "one hundred thirty million, two hundred twenty-one thousand, four hundred fifty-four".

Divisors: 1 2 11 22 5919157 11838314 65110727 130221454