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130733261 = 509925639
BaseRepresentation
bin1111100101011…
…01010011001101
3100002222221022122
413302231103031
5231431431021
620550022325
73145133351
oct762552315
9302887278
10130733261
116788291a
12379479a5
1321114479
1413511461
15b725bab
hex7cad4cd

130733261 has 4 divisors (see below), whose sum is σ = 130764000. Its totient is φ = 130702524.

The previous prime is 130733227. The next prime is 130733263. The reversal of 130733261 is 162337031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 130733261 - 210 = 130732237 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130733261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130733263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7721 + ... + 17918.

It is an arithmetic number, because the mean of its divisors is an integer number (32691000).

Almost surely, 2130733261 is an apocalyptic number.

It is an amenable number.

130733261 is a deficient number, since it is larger than the sum of its proper divisors (30739).

130733261 is an equidigital number, since it uses as much as digits as its factorization.

130733261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30738.

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 130733261 is about 11433.8646572364. The cubic root of 130733261 is about 507.5303658212.

The spelling of 130733261 in words is "one hundred thirty million, seven hundred thirty-three thousand, two hundred sixty-one".

Divisors: 1 5099 25639 130733261