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268045620 = 223514713037
BaseRepresentation
bin11111111101000…
…00110100110100
3200200101010110120
433332200310310
51022104424440
642333051540
76433231053
oct1776406464
9620333416
10268045620
11128339707
1275926bb0
13436c039b
142785639a
15187eadd0
hexffa0d34

268045620 has 48 divisors (see below), whose sum is σ = 751285248. Its totient is φ = 71406720.

The previous prime is 268045607. The next prime is 268045621. The reversal of 268045620 is 26540862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268045621) 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, 86742 + ... + 89778.

It is an arithmetic number, because the mean of its divisors is an integer number (15651776).

Almost surely, 2268045620 is an apocalyptic number.

268045620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268045620 is an abundant number, since it is smaller than the sum of its proper divisors (483239628).

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

268045620 is a wasteful number, since it uses less digits than its factorization.

268045620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4520 (or 4518 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 268045620 is about 16372.0988269678. The cubic root of 268045620 is about 644.7671534978.

The spelling of 268045620 in words is "two hundred sixty-eight million, forty-five thousand, six hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1471 2942 3037 4413 5884 6074 7355 8826 9111 12148 14710 15185 17652 18222 22065 29420 30370 36444 44130 45555 60740 88260 91110 182220 4467427 8934854 13402281 17869708 22337135 26804562 44674270 53609124 67011405 89348540 134022810 268045620