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45130254 = 2313836971
BaseRepresentation
bin1010110000101…
…0001000001110
310010220212001220
42230022020032
543023132004
64251144210
71055413041
oct254121016
9103825056
1045130254
1123525034
1213145066
1394719c0
145dcac58
153e66dd9
hex2b0a20e

45130254 has 32 divisors (see below), whose sum is σ = 98388864. Its totient is φ = 13716960.

The previous prime is 45130231. The next prime is 45130259. The reversal of 45130254 is 45203154.

It is a super-2 number, since 2×451302542 = 4073479652209032, which contains 22 as substring.

It is a congruent 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, 2989 + ... + 9959.

It is an arithmetic number, because the mean of its divisors is an integer number (3074652).

Almost surely, 245130254 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45130254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49194432).

45130254 is an abundant number, since it is smaller than the sum of its proper divisors (53258610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45130254 is a wasteful number, since it uses less digits than its factorization.

45130254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7072.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 45130254 is about 6717.9054771558. The cubic root of 45130254 is about 356.0321847349.

Subtracting 45130254 from its reverse (45203154), we obtain a square (72900 = 2702).

The spelling of 45130254 in words is "forty-five million, one hundred thirty thousand, two hundred fifty-four".

Divisors: 1 2 3 6 13 26 39 78 83 166 249 498 1079 2158 3237 6474 6971 13942 20913 41826 90623 181246 271869 543738 578593 1157186 1735779 3471558 7521709 15043418 22565127 45130254