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268672651 = 1323742967
BaseRepresentation
bin10000000000111…
…001111010001011
3200201112222120221
4100000321322023
51022240011101
642354330511
76441452122
oct2000717213
9621488527
10268672651
11128727815
1275b89a37
134387c900
142797aab9
15188c1aa1
hex10039e8b

268672651 has 12 divisors (see below), whose sum is σ = 298799472. Its totient is φ = 241297056.

The previous prime is 268672583. The next prime is 268672661. The reversal of 268672651 is 156276862.

It is a de Polignac number, because none of the positive numbers 2k-268672651 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 268672598 and 268672607.

It is not an unprimeable number, because it can be changed into a prime (268672661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15231 + ... + 27736.

It is an arithmetic number, because the mean of its divisors is an integer number (24899956).

Almost surely, 2268672651 is an apocalyptic number.

268672651 is a deficient number, since it is larger than the sum of its proper divisors (30126821).

268672651 is a wasteful number, since it uses less digits than its factorization.

268672651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43030 (or 43017 counting only the distinct ones).

The product of its digits is 241920, while the sum is 43.

The square root of 268672651 is about 16391.2370186023. The cubic root of 268672651 is about 645.2695233992.

The spelling of 268672651 in words is "two hundred sixty-eight million, six hundred seventy-two thousand, six hundred fifty-one".

Divisors: 1 13 37 169 481 6253 42967 558571 1589779 7261423 20667127 268672651