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268209834 = 23431496977
BaseRepresentation
bin11111111110010…
…00111010101010
3200200200110201120
433333020322222
51022130203314
642340400110
76434513604
oct1777107252
9620613646
10268209834
11128441022
12759a6036
134374a059
142789a174
151882e8a9
hexffc8eaa

268209834 has 32 divisors (see below), whose sum is σ = 552657600. Its totient is φ = 86725632.

The previous prime is 268209829. The next prime is 268209847. The reversal of 268209834 is 438902862.

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, 34954 + ... + 41930.

It is an arithmetic number, because the mean of its divisors is an integer number (17270550).

Almost surely, 2268209834 is an apocalyptic number.

268209834 is an abundant number, since it is smaller than the sum of its proper divisors (284447766).

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

268209834 is a wasteful number, since it uses less digits than its factorization.

268209834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7174.

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 268209834 is about 16377.1131155647. The cubic root of 268209834 is about 644.8987954907.

The spelling of 268209834 in words is "two hundred sixty-eight million, two hundred nine thousand, eight hundred thirty-four".

Divisors: 1 2 3 6 43 86 129 149 258 298 447 894 6407 6977 12814 13954 19221 20931 38442 41862 300011 600022 900033 1039573 1800066 2079146 3118719 6237438 44701639 89403278 134104917 268209834