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268429369 = 1320648413
BaseRepresentation
bin11111111111111…
…10100000111001
3200201002121212111
433333332200321
51022204214434
642345212321
76436416625
oct1777764071
9621077774
10268429369
11128580a5a
1275a910a1
13437c5c60
1427916185
1518874964
hexfffe839

268429369 has 4 divisors (see below), whose sum is σ = 289077796. Its totient is φ = 247780944.

The previous prime is 268429331. The next prime is 268429373. The reversal of 268429369 is 963924862.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 96294969 + 172134400 = 9813^2 + 13120^2 .

It is a cyclic number.

It is not a de Polignac number, because 268429369 - 27 = 268429241 is a prime.

It is a super-2 number, since 2×2684293692 = 144108652283476322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268429379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10324194 + ... + 10324219.

It is an arithmetic number, because the mean of its divisors is an integer number (72269449).

Almost surely, 2268429369 is an apocalyptic number.

It is an amenable number.

268429369 is a deficient number, since it is larger than the sum of its proper divisors (20648427).

268429369 is a wasteful number, since it uses less digits than its factorization.

268429369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20648426.

The product of its digits is 1119744, while the sum is 49.

The square root of 268429369 is about 16383.8142384489. The cubic root of 268429369 is about 645.0747016018.

The spelling of 268429369 in words is "two hundred sixty-eight million, four hundred twenty-nine thousand, three hundred sixty-nine".

Divisors: 1 13 20648413 268429369