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45130251 = 3791091747
BaseRepresentation
bin1010110000101…
…0001000001011
310010220212001210
42230022020023
543023132001
64251144203
71055413035
oct254121013
9103825053
1045130251
1123525031
1213145063
1394719ba
145dcac55
153e66dd6
hex2b0a20b

45130251 has 16 divisors (see below), whose sum is σ = 61529600. Its totient is φ = 29416608.

The previous prime is 45130231. The next prime is 45130259. The reversal of 45130251 is 15203154.

It is not a de Polignac number, because 45130251 - 25 = 45130219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45130259) 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, 24960 + ... + 26706.

It is an arithmetic number, because the mean of its divisors is an integer number (3845600).

Almost surely, 245130251 is an apocalyptic number.

45130251 is a deficient number, since it is larger than the sum of its proper divisors (16399349).

45130251 is a wasteful number, since it uses less digits than its factorization.

45130251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1938.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 45130251 is about 6717.9052538719. The cubic root of 45130251 is about 356.0321768459.

The spelling of 45130251 in words is "forty-five million, one hundred thirty thousand, two hundred fifty-one".

Divisors: 1 3 79 109 237 327 1747 5241 8611 25833 138013 190423 414039 571269 15043417 45130251