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45072650 = 2527218397
BaseRepresentation
bin1010101111110…
…0000100001010
310010210221001102
42223330010022
543014311100
64250021402
71055053100
oct253740412
9103727042
1045072650
1123495827
1213117862
13945170c
145db3c70
153e54cd5
hex2afc10a

45072650 has 36 divisors (see below), whose sum is σ = 97527798. Its totient is φ = 15452640.

The previous prime is 45072647. The next prime is 45072673. The reversal of 45072650 is 5627054.

It can be written as a sum of positive squares in 3 ways, for example, as 41203561 + 3869089 = 6419^2 + 1967^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6749 + ... + 11648.

Almost surely, 245072650 is an apocalyptic number.

45072650 is an abundant number, since it is smaller than the sum of its proper divisors (52455148).

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

45072650 is a wasteful number, since it uses less digits than its factorization.

45072650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18423 (or 18411 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 45072650 is about 6713.6167599886. The cubic root of 45072650 is about 355.8806410869.

The spelling of 45072650 in words is "forty-five million, seventy-two thousand, six hundred fifty".

Divisors: 1 2 5 7 10 14 25 35 49 50 70 98 175 245 350 490 1225 2450 18397 36794 91985 128779 183970 257558 459925 643895 901453 919850 1287790 1802906 3219475 4507265 6438950 9014530 22536325 45072650