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268137748 = 2271944147
BaseRepresentation
bin11111111101101…
…11010100010100
3200200112210211201
433332313110110
51022120401443
642335042244
76434063464
oct1776672424
9620483751
10268137748
111283a194a
1275970384
13437232b8
142787bba4
151881834d
hexffb7514

268137748 has 12 divisors (see below), whose sum is σ = 475850592. Its totient is φ = 132180440.

The previous prime is 268137739. The next prime is 268137763. The reversal of 268137748 is 847731862.

268137748 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

268137748 is strictly pandigital in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 268137698 and 268137707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 471790 + ... + 472357.

It is an arithmetic number, because the mean of its divisors is an integer number (39654216).

Almost surely, 2268137748 is an apocalyptic number.

It is an amenable number.

268137748 is a deficient number, since it is larger than the sum of its proper divisors (207712844).

268137748 is a wasteful number, since it uses less digits than its factorization.

268137748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944222 (or 944220 counting only the distinct ones).

The product of its digits is 451584, while the sum is 46.

The square root of 268137748 is about 16374.9121524361. The cubic root of 268137748 is about 644.8410144376.

The spelling of 268137748 in words is "two hundred sixty-eight million, one hundred thirty-seven thousand, seven hundred forty-eight".

Divisors: 1 2 4 71 142 284 944147 1888294 3776588 67034437 134068874 268137748