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268215470 = 2526821547
BaseRepresentation
bin11111111110010…
…10010010101110
3200200200202110022
433333022102232
51022130343340
642340442142
76434536205
oct1777122256
9620622408
10268215470
11128445286
12759a9352
134374c7a3
142789c23c
15188313b5
hexffca4ae

268215470 has 8 divisors (see below), whose sum is σ = 482787864. Its totient is φ = 107286184.

The previous prime is 268215463. The next prime is 268215487. The reversal of 268215470 is 74512862.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 268215470.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13410764 + ... + 13410783.

It is an arithmetic number, because the mean of its divisors is an integer number (60348483).

Almost surely, 2268215470 is an apocalyptic number.

268215470 is a deficient number, since it is larger than the sum of its proper divisors (214572394).

268215470 is a wasteful number, since it uses less digits than its factorization.

268215470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26821554.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 268215470 is about 16377.2851840590. The cubic root of 268215470 is about 644.9033126308.

The spelling of 268215470 in words is "two hundred sixty-eight million, two hundred fifteen thousand, four hundred seventy".

Divisors: 1 2 5 10 26821547 53643094 134107735 268215470