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268557662230513 = 1951342371402053
BaseRepresentation
bin111101000100000001110100…
…000011110001011111110001
31022012212212021020021111112121
4331010001310003301133301
5240200022043012334023
62351101404204554241
7110365436140240315
oct7504016403613761
91265785236244477
10268557662230513
1178630735055347
1226154335852981
13b6b0b56b9bac6
144a46390011b45
15210ac03aaad5d
hexf440740f17f1

268557662230513 has 8 divisors (see below), whose sum is σ = 268696766635776. Its totient is φ = 268418559318000.

The previous prime is 268557662230391. The next prime is 268557662230553. The reversal of 268557662230513 is 315032266755862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-268557662230513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268557662230553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 667764795 + ... + 668166847.

It is an arithmetic number, because the mean of its divisors is an integer number (33587095829472).

Almost surely, 2268557662230513 is an apocalyptic number.

It is an amenable number.

268557662230513 is a deficient number, since it is larger than the sum of its proper divisors (139104405263).

268557662230513 is a wasteful number, since it uses less digits than its factorization.

268557662230513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746375.

The product of its (nonzero) digits is 108864000, while the sum is 61.

The spelling of 268557662230513 in words is "two hundred sixty-eight trillion, five hundred fifty-seven billion, six hundred sixty-two million, two hundred thirty thousand, five hundred thirteen".

Divisors: 1 1951 342371 402053 667965821 784405403 137651287663 268557662230513