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268949020 = 22514939007
BaseRepresentation
bin10000000001111…
…101011000011100
3200202002000200211
4100001331120130
51022322332040
642404302204
76444012634
oct2001753034
9622060624
10268949020
111288a641a
12760a1964
1343948642
1427a0d6c4
15189288ea
hex1007d61c

268949020 has 24 divisors (see below), whose sum is σ = 565233984. Its totient is φ = 107495616.

The previous prime is 268949017. The next prime is 268949033. The reversal of 268949020 is 20949862.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25357 + ... + 34363.

It is an arithmetic number, because the mean of its divisors is an integer number (23551416).

Almost surely, 2268949020 is an apocalyptic number.

268949020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268949020 is an abundant number, since it is smaller than the sum of its proper divisors (296284964).

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

268949020 is a wasteful number, since it uses less digits than its factorization.

268949020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10509 (or 10507 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 268949020 is about 16399.6652404859. The cubic root of 268949020 is about 645.4906988460.

The spelling of 268949020 in words is "two hundred sixty-eight million, nine hundred forty-nine thousand, twenty".

Divisors: 1 2 4 5 10 20 1493 2986 5972 7465 9007 14930 18014 29860 36028 45035 90070 180140 13447451 26894902 53789804 67237255 134474510 268949020