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268071797 = 725470853
BaseRepresentation
bin11111111101001…
…11001101110101
3200200102110101002
433332213031311
51022111244142
642333413045
76433400300
oct1776471565
9620373332
10268071797
11128357344
127593a185
13436cc286
1427861b37
1518803a32
hexffa7375

268071797 has 6 divisors (see below), whose sum is σ = 311838678. Its totient is φ = 229775784.

The previous prime is 268071781. The next prime is 268071803. The reversal of 268071797 is 797170862.

It can be written as a sum of positive squares in only one way, i.e., 157527601 + 110544196 = 12551^2 + 10514^2 .

It is not a de Polignac number, because 268071797 - 24 = 268071781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268071707) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2735378 + ... + 2735475.

It is an arithmetic number, because the mean of its divisors is an integer number (51973113).

Almost surely, 2268071797 is an apocalyptic number.

It is an amenable number.

268071797 is a deficient number, since it is larger than the sum of its proper divisors (43766881).

268071797 is an equidigital number, since it uses as much as digits as its factorization.

268071797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5470867 (or 5470860 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 47.

The square root of 268071797 is about 16372.8982467980. The cubic root of 268071797 is about 644.7881418659.

The spelling of 268071797 in words is "two hundred sixty-eight million, seventy-one thousand, seven hundred ninety-seven".

Divisors: 1 7 49 5470853 38295971 268071797