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45070780 = 2252253539
BaseRepresentation
bin1010101111101…
…1100110111100
310010210211111011
42223323212330
543014231110
64250005004
71055044456
oct253734674
9103724434
1045070780
1123494387
1213116764
139450901
145db32d6
153e5448a
hex2afb9bc

45070780 has 12 divisors (see below), whose sum is σ = 94648680. Its totient is φ = 18028304.

The previous prime is 45070763. The next prime is 45070783. The reversal of 45070780 is 8707054.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45070783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1126750 + ... + 1126789.

It is an arithmetic number, because the mean of its divisors is an integer number (7887390).

Almost surely, 245070780 is an apocalyptic number.

It is an amenable number.

45070780 is an abundant number, since it is smaller than the sum of its proper divisors (49577900).

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

45070780 is a wasteful number, since it uses less digits than its factorization.

45070780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2253548 (or 2253546 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 45070780 is about 6713.4774893493. The cubic root of 45070780 is about 355.8757193587.

The spelling of 45070780 in words is "forty-five million, seventy thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 2253539 4507078 9014156 11267695 22535390 45070780