Search a number
-
+
268724825 = 5261176213
BaseRepresentation
bin10000000001000…
…110101001011001
3200201122122011022
4100001012221121
51022243143300
642355412225
76442060205
oct2001065131
9621578138
10268724825
11128762a36
1275bb4075
134389a595
1427991b05
15188d2285
hex10046a59

268724825 has 12 divisors (see below), whose sum is σ = 338683308. Its totient is φ = 211454400.

The previous prime is 268724789. The next prime is 268724839. The reversal of 268724825 is 528427862.

It can be written as a sum of positive squares in 6 ways, for example, as 102495376 + 166229449 = 10124^2 + 12893^2 .

It is not a de Polignac number, because 268724825 - 28 = 268724569 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86582 + ... + 89631.

It is an arithmetic number, because the mean of its divisors is an integer number (28223609).

Almost surely, 2268724825 is an apocalyptic number.

268724825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

268724825 is a deficient number, since it is larger than the sum of its proper divisors (69958483).

268724825 is a wasteful number, since it uses less digits than its factorization.

268724825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176284 (or 176279 counting only the distinct ones).

The product of its digits is 430080, while the sum is 44.

The square root of 268724825 is about 16392.8284624710. The cubic root of 268724825 is about 645.3112893586.

The spelling of 268724825 in words is "two hundred sixty-eight million, seven hundred twenty-four thousand, eight hundred twenty-five".

Divisors: 1 5 25 61 305 1525 176213 881065 4405325 10748993 53744965 268724825