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130838321 = 31127167199
BaseRepresentation
bin1111100110001…
…10111100110001
3100010012021102202
413303012330301
5231443311241
620552152545
73146051555
oct763067461
9303167382
10130838321
1167944849
1237998755
1321150233
141353b865
15b746d9b
hex7cc6f31

130838321 has 16 divisors (see below), whose sum is σ = 137625600. Its totient is φ = 124241040.

The previous prime is 130838297. The next prime is 130838333. The reversal of 130838321 is 123838031.

It is a cyclic number.

It is not a de Polignac number, because 130838321 - 210 = 130837297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130838021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 657380 + ... + 657578.

It is an arithmetic number, because the mean of its divisors is an integer number (8601600).

Almost surely, 2130838321 is an apocalyptic number.

It is an amenable number.

130838321 is a deficient number, since it is larger than the sum of its proper divisors (6787279).

130838321 is a wasteful number, since it uses less digits than its factorization.

130838321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 130838321 is about 11438.4579817386. The cubic root of 130838321 is about 507.6662834468. Note that the first 3 decimals are identical.

The spelling of 130838321 in words is "one hundred thirty million, eight hundred thirty-eight thousand, three hundred twenty-one".

Divisors: 1 31 127 167 199 3937 5177 6169 21209 25273 33233 657479 783463 1030223 4220591 130838321