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45131960 = 2351128299
BaseRepresentation
bin1010110000101…
…0100010111000
310010220221102002
42230022202320
543023210320
64251200132
71055421026
oct254124270
9103827362
1045131960
1123526345
1213146048
139472703
145dcb716
153e67675
hex2b0a8b8

45131960 has 16 divisors (see below), whose sum is σ = 101547000. Its totient is φ = 18052768.

The previous prime is 45131959. The next prime is 45131969. The reversal of 45131960 is 6913154.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45131969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 564110 + ... + 564189.

Almost surely, 245131960 is an apocalyptic number.

45131960 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45131960 is an abundant number, since it is smaller than the sum of its proper divisors (56415040).

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

45131960 is a wasteful number, since it uses less digits than its factorization.

45131960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128310 (or 1128306 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 45131960 is about 6718.0324500556. The cubic root of 45131960 is about 356.0366708848.

The spelling of 45131960 in words is "forty-five million, one hundred thirty-one thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 1128299 2256598 4513196 5641495 9026392 11282990 22565980 45131960