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268400461 = 7156724469
BaseRepresentation
bin11111111111101…
…11011101001101
3200201001011012211
433333313131031
51022202303321
642344430421
76436236430
oct1777673515
9621034184
10268400461
1112856126a
1275a78411
13437b5a54
1427909817
151886b0e1
hexfff774d

268400461 has 8 divisors (see below), whose sum is σ = 306951680. Its totient is φ = 229901328.

The previous prime is 268400443. The next prime is 268400491. The reversal of 268400461 is 164004862.

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

It is a cyclic number.

It is not a de Polignac number, because 268400461 - 27 = 268400333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268400491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1266 + ... + 23203.

It is an arithmetic number, because the mean of its divisors is an integer number (38368960).

Almost surely, 2268400461 is an apocalyptic number.

It is an amenable number.

268400461 is a deficient number, since it is larger than the sum of its proper divisors (38551219).

268400461 is a wasteful number, since it uses less digits than its factorization.

268400461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26043.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 268400461 is about 16382.9320025446. The cubic root of 268400461 is about 645.0515440650.

The spelling of 268400461 in words is "two hundred sixty-eight million, four hundred thousand, four hundred sixty-one".

Divisors: 1 7 1567 10969 24469 171283 38342923 268400461