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130807228 = 22313313187
BaseRepresentation
bin1111100101111…
…11010110111100
3100010010200210011
413302333112330
5231441312403
620551353004
73145562116
oct762772674
9303120704
10130807228
1167923452
1237982764
132113c036
14135303b6
15b73ca6d
hex7cbf5bc

130807228 has 24 divisors (see below), whose sum is σ = 237085184. Its totient is φ = 63082800.

The previous prime is 130807217. The next prime is 130807283. The reversal of 130807228 is 822708031.

It is a super-2 number, since 2×1308072282 = 34221061794087968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a self number, because there is not a number n which added to its sum of digits gives 130807228.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39451 + ... + 42637.

Almost surely, 2130807228 is an apocalyptic number.

It is an amenable number.

130807228 is a deficient number, since it is larger than the sum of its proper divisors (106277956).

130807228 is a wasteful number, since it uses less digits than its factorization.

130807228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3553 (or 3551 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 130807228 is about 11437.0987579893. The cubic root of 130807228 is about 507.6260655703.

The spelling of 130807228 in words is "one hundred thirty million, eight hundred seven thousand, two hundred twenty-eight".

Divisors: 1 2 4 31 62 124 331 662 1324 3187 6374 10261 12748 20522 41044 98797 197594 395188 1054897 2109794 4219588 32701807 65403614 130807228