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268078242 = 23257173851
BaseRepresentation
bin11111111101010…
…00110010100010
3200200102210012210
433332220302202
51022112000432
642333502550
76433425135
oct1776506242
9620383183
10268078242
11128361173
1275941a56
13437021a3
142786421c
15188058cc
hexffa8ca2

268078242 has 16 divisors (see below), whose sum is σ = 538245792. Its totient is φ = 89011200.

The previous prime is 268078229. The next prime is 268078247. The reversal of 268078242 is 242870862.

It is a self number, because there is not a number n which added to its sum of digits gives 268078242.

It is not an unprimeable number, because it can be changed into a prime (268078247) 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, 85384 + ... + 88467.

It is an arithmetic number, because the mean of its divisors is an integer number (33640362).

Almost surely, 2268078242 is an apocalyptic number.

268078242 is an abundant number, since it is smaller than the sum of its proper divisors (270167550).

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

268078242 is a wasteful number, since it uses less digits than its factorization.

268078242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174113.

The product of its (nonzero) digits is 86016, while the sum is 39.

The square root of 268078242 is about 16373.0950647701. The cubic root of 268078242 is about 644.7933091709.

The spelling of 268078242 in words is "two hundred sixty-eight million, seventy-eight thousand, two hundred forty-two".

Divisors: 1 2 3 6 257 514 771 1542 173851 347702 521553 1043106 44679707 89359414 134039121 268078242