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268489033 = 4143672273
BaseRepresentation
bin10000000000001…
…101000101001001
3200201012122201021
4100000031011021
51022213122113
642350352441
76440055601
oct2000150511
9621178637
10268489033
1112861186a
1275abb721
1343817167
142792dc01
151888748d
hex1000d149

268489033 has 16 divisors (see below), whose sum is σ = 285759936. Its totient is φ = 251919360.

The previous prime is 268489031. The next prime is 268489061. The reversal of 268489033 is 330984862.

It is a cyclic number.

It is not a de Polignac number, because 268489033 - 21 = 268489031 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268489031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116985 + ... + 119257.

It is an arithmetic number, because the mean of its divisors is an integer number (17859996).

Almost surely, 2268489033 is an apocalyptic number.

It is an amenable number.

268489033 is a deficient number, since it is larger than the sum of its proper divisors (17270903).

268489033 is a wasteful number, since it uses less digits than its factorization.

268489033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2424.

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 268489033 is about 16385.6349587070. The cubic root of 268489033 is about 645.1224918093.

The spelling of 268489033 in words is "two hundred sixty-eight million, four hundred eighty-nine thousand, thirty-three".

Divisors: 1 41 43 67 1763 2273 2747 2881 93193 97739 118121 152291 4007299 6243931 6548513 268489033