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45075030 = 235711131979
BaseRepresentation
bin1010101111110…
…0101001010110
310010211001022120
42223330221112
543014400110
64250040410
71055063040
oct253745126
9103731276
1045075030
11234975a0
1213119106
139452820
145db4a90
153e55870
hex2afca56

45075030 has 256 divisors, whose sum is σ = 154828800. Its totient is φ = 8087040.

The previous prime is 45075013. The next prime is 45075047. The reversal of 45075030 is 3057054.

It is an interprime number because it is at equal distance from previous prime (45075013) and next prime (45075047).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 570531 + ... + 570609.

It is an arithmetic number, because the mean of its divisors is an integer number (604800).

Almost surely, 245075030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45075030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77414400).

45075030 is an abundant number, since it is smaller than the sum of its proper divisors (109753770).

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

45075030 is a wasteful number, since it uses less digits than its factorization.

45075030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139.

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 45075030 is about 6713.7940093512. The cubic root of 45075030 is about 355.8869049078.

The spelling of 45075030 in words is "forty-five million, seventy-five thousand, thirty".