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130775228 = 22223146609
BaseRepresentation
bin1111100101101…
…11100010111100
3100010002001212222
413302313202330
5231434301403
620550544512
73145366613
oct762674274
9303061788
10130775228
1167901401
1237968138
132112a5bc
141352287a
15b733338
hex7cb78bc

130775228 has 12 divisors (see below), whose sum is σ = 229884480. Its totient is φ = 65093952.

The previous prime is 130775173. The next prime is 130775243. The reversal of 130775228 is 822577031.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72413 + ... + 74196.

It is an arithmetic number, because the mean of its divisors is an integer number (19157040).

Almost surely, 2130775228 is an apocalyptic number.

It is an amenable number.

130775228 is a deficient number, since it is larger than the sum of its proper divisors (99109252).

130775228 is a wasteful number, since it uses less digits than its factorization.

130775228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146836 (or 146834 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 130775228 is about 11435.6997162395. The cubic root of 130775228 is about 507.5846678607.

The spelling of 130775228 in words is "one hundred thirty million, seven hundred seventy-five thousand, two hundred twenty-eight".

Divisors: 1 2 4 223 446 892 146609 293218 586436 32693807 65387614 130775228