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130842868 = 22132516209
BaseRepresentation
bin1111100110010…
…00000011110100
3100010012111200011
413303020003310
5231443432433
620552230004
73146101042
oct763100364
9303174604
10130842868
1167948202
123799b304
1321152320
141353d392
15b7483cd
hex7cc80f4

130842868 has 12 divisors (see below), whose sum is σ = 246588580. Its totient is φ = 60388992.

The previous prime is 130842853. The next prime is 130842919. The reversal of 130842868 is 868248031.

It can be written as a sum of positive squares in 2 ways, for example, as 5895184 + 124947684 = 2428^2 + 11178^2 .

It is a super-2 number, since 2×1308428682 = 34239712212930848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 130842868.

It is a congruent number.

It is an unprimeable number.

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, 1258053 + ... + 1258156.

Almost surely, 2130842868 is an apocalyptic number.

It is an amenable number.

130842868 is a deficient number, since it is larger than the sum of its proper divisors (115745712).

130842868 is a wasteful number, since it uses less digits than its factorization.

130842868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2516226 (or 2516224 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 130842868 is about 11438.6567393204. The cubic root of 130842868 is about 507.6721643229.

The spelling of 130842868 in words is "one hundred thirty million, eight hundred forty-two thousand, eight hundred sixty-eight".

Divisors: 1 2 4 13 26 52 2516209 5032418 10064836 32710717 65421434 130842868