Search a number
-
+
253833868 = 221729971327
BaseRepresentation
bin11110010000100…
…11001010001100
3122200122002121101
433020103022030
51004440140433
641104312444
76201360301
oct1710231214
9580562541
10253833868
11120312162
1271012724
1340785772
14259d70a8
151744007d
hexf21328c

253833868 has 48 divisors (see below), whose sum is σ = 491944320. Its totient is φ = 114057216.

The previous prime is 253833847. The next prime is 253833917. The reversal of 253833868 is 868338352.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190621 + ... + 191947.

It is an arithmetic number, because the mean of its divisors is an integer number (10248840).

Almost surely, 2253833868 is an apocalyptic number.

It is an amenable number.

253833868 is a deficient number, since it is larger than the sum of its proper divisors (238110452).

253833868 is a wasteful number, since it uses less digits than its factorization.

253833868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1474 (or 1472 counting only the distinct ones).

The product of its digits is 829440, while the sum is 46.

The square root of 253833868 is about 15932.1645735914. The cubic root of 253833868 is about 633.1644497682.

The spelling of 253833868 in words is "two hundred fifty-three million, eight hundred thirty-three thousand, eight hundred sixty-eight".

Divisors: 1 2 4 17 29 34 58 68 97 116 194 388 493 986 1327 1649 1972 2654 2813 3298 5308 5626 6596 11252 22559 38483 45118 47821 76966 90236 95642 128719 153932 191284 257438 514876 654211 1308422 2188223 2616844 3732851 4376446 7465702 8752892 14931404 63458467 126916934 253833868