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39880490 = 25131392207
BaseRepresentation
bin1001100000100…
…0011100101010
32210001010202012
42120020130222
540202133430
63542435522
7662656436
oct230103452
983033665
1039880490
1120569891
1211432ba2
138354330
1454219c6
15377b695
hex260872a

39880490 has 32 divisors (see below), whose sum is σ = 77898240. Its totient is φ = 14612544.

The previous prime is 39880471. The next prime is 39880501. The reversal of 39880490 is 9408893.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16967 + ... + 19173.

It is an arithmetic number, because the mean of its divisors is an integer number (2434320).

Almost surely, 239880490 is an apocalyptic number.

39880490 is a deficient number, since it is larger than the sum of its proper divisors (38017750).

39880490 is a wasteful number, since it uses less digits than its factorization.

39880490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2366.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 39880490 is about 6315.1001575589. The cubic root of 39880490 is about 341.6542508543.

The spelling of 39880490 in words is "thirty-nine million, eight hundred eighty thousand, four hundred ninety".

Divisors: 1 2 5 10 13 26 65 130 139 278 695 1390 1807 2207 3614 4414 9035 11035 18070 22070 28691 57382 143455 286910 306773 613546 1533865 3067730 3988049 7976098 19940245 39880490