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40485250 = 2531312457
BaseRepresentation
bin1001101001110…
…0000110000010
32211011212022201
42122130012002
540331012000
64003423414
71001055541
oct232340602
984155281
1040485250
1120942193
1211684b6a
138506690
14553c158
15384a96a
hex269c182

40485250 has 32 divisors (see below), whose sum is σ = 81624816. Its totient is φ = 14947200.

The previous prime is 40485233. The next prime is 40485253. The reversal of 40485250 is 5258404.

It can be written as a sum of positive squares in 8 ways, for example, as 1034289 + 39450961 = 1017^2 + 6281^2 .

It is not an unprimeable number, because it can be changed into a prime (40485253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2979 + ... + 9478.

Almost surely, 240485250 is an apocalyptic number.

40485250 is an abundant number, since it is smaller than the sum of its proper divisors (41139566).

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

40485250 is a wasteful number, since it uses less digits than its factorization.

40485250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12487 (or 12477 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 40485250 is about 6362.8020556984. The cubic root of 40485250 is about 343.3725774937.

The spelling of 40485250 in words is "forty million, four hundred eighty-five thousand, two hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 125 130 250 325 650 1625 3250 12457 24914 62285 124570 161941 311425 323882 622850 809705 1557125 1619410 3114250 4048525 8097050 20242625 40485250