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45008780 = 2252250439
BaseRepresentation
bin1010101110110…
…0011110001100
310010200200102212
42223230132030
543010240110
64244405552
71054365635
oct253543614
9103620385
1045008780
1123451843
12130a68b8
13942b61b
145d9888c
153e40e05
hex2aec78c

45008780 has 12 divisors (see below), whose sum is σ = 94518480. Its totient is φ = 18003504.

The previous prime is 45008779. The next prime is 45008827. The reversal of 45008780 is 8780054.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1125200 + ... + 1125239.

It is an arithmetic number, because the mean of its divisors is an integer number (7876540).

Almost surely, 245008780 is an apocalyptic number.

It is an amenable number.

45008780 is an abundant number, since it is smaller than the sum of its proper divisors (49509700).

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

45008780 is a wasteful number, since it uses less digits than its factorization.

45008780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2250448 (or 2250446 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 45008780 is about 6708.8583231426. The cubic root of 45008780 is about 355.7124619248.

The spelling of 45008780 in words is "forty-five million, eight thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 2250439 4500878 9001756 11252195 22504390 45008780