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45131070 = 23511313313
BaseRepresentation
bin1010110000101…
…0010100111110
310010220220012010
42230022110332
543023143240
64251152050
71055415315
oct254122476
9103826163
1045131070
1123525706
1213145626
13947219a
145dcb27c
153e67280
hex2b0a53e

45131070 has 32 divisors (see below), whose sum is σ = 109281312. Its totient is φ = 11927552.

The previous prime is 45131027. The next prime is 45131077. The reversal of 45131070 is 7013154.

45131070 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45131077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3267 + ... + 10046.

It is an arithmetic number, because the mean of its divisors is an integer number (3415041).

Almost surely, 245131070 is an apocalyptic number.

45131070 is an abundant number, since it is smaller than the sum of its proper divisors (64150242).

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

45131070 is a wasteful number, since it uses less digits than its factorization.

45131070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13436.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 45131070 is about 6717.9662100966. The cubic root of 45131070 is about 356.0343305276.

The spelling of 45131070 in words is "forty-five million, one hundred thirty-one thousand, seventy".

Divisors: 1 2 3 5 6 10 15 30 113 226 339 565 678 1130 1695 3390 13313 26626 39939 66565 79878 133130 199695 399390 1504369 3008738 4513107 7521845 9026214 15043690 22565535 45131070