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268002040 = 23518713581
BaseRepresentation
bin11111111100101…
…10001011111000
3200200021220200111
433332112023320
51022102031130
642332114104
76432660025
oct1776261370
9620256614
10268002040
11128309999
1275905934
13436a65b7
142784454c
15187dd02a
hexff962f8

268002040 has 32 divisors (see below), whose sum is σ = 603495360. Its totient is φ = 107113600.

The previous prime is 268002023. The next prime is 268002043. The reversal of 268002040 is 40200862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268002043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73050 + ... + 76630.

It is an arithmetic number, because the mean of its divisors is an integer number (18859230).

Almost surely, 2268002040 is an apocalyptic number.

268002040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268002040 is an abundant number, since it is smaller than the sum of its proper divisors (335493320).

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

268002040 is a wasteful number, since it uses less digits than its factorization.

268002040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5463 (or 5459 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 268002040 is about 16370.7678500430. The cubic root of 268002040 is about 644.7322086061.

The spelling of 268002040 in words is "two hundred sixty-eight million, two thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 1871 3581 3742 7162 7484 9355 14324 14968 17905 18710 28648 35810 37420 71620 74840 143240 6700051 13400102 26800204 33500255 53600408 67000510 134001020 268002040