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268075129 = 7223392
BaseRepresentation
bin11111111101010…
…00000001111001
3200200102121221111
433332220001321
51022111401004
642333440321
76433413100
oct1776500171
9620377844
10268075129
111283598a3
12759400a1
134370094a
1427863037
1518804a04
hexffa8079

268075129 has 9 divisors (see below), whose sum is σ = 311975877. Its totient is φ = 229680444.

The previous prime is 268075127. The next prime is 268075133. The reversal of 268075129 is 921570862.

The square root of 268075129 is 16373.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 268075129 - 21 = 268075127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 268075091 and 268075100.

It is not an unprimeable number, because it can be changed into a prime (268075127) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 113442 + ... + 115780.

Almost surely, 2268075129 is an apocalyptic number.

268075129 is the 16373-rd square number.

268075129 is the 8187-th centered octagonal number.

It is an amenable number.

268075129 is a deficient number, since it is larger than the sum of its proper divisors (43900748).

268075129 is an frugal number, since it uses more digits than its factorization.

268075129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4692 (or 2346 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The cubic root of 268075129 is about 644.7908133208.

The spelling of 268075129 in words is "two hundred sixty-eight million, seventy-five thousand, one hundred twenty-nine".

Divisors: 1 7 49 2339 16373 114611 5470921 38296447 268075129