Search a number
-
+
253887852 = 223137389397
BaseRepresentation
bin11110010001000…
…00010101101100
3122200201211122210
433020200111230
51004443402402
641105410420
76202003551
oct1710402554
9580654583
10253887852
11120349779
1271039a10
13407a41ca
1425a0ca28
151745106c
hexf22056c

253887852 has 48 divisors (see below), whose sum is σ = 599770080. Its totient is φ = 83584512.

The previous prime is 253887791. The next prime is 253887853. The reversal of 253887852 is 258788352.

It is not an unprimeable number, because it can be changed into a prime (253887853) 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, 639318 + ... + 639714.

It is an arithmetic number, because the mean of its divisors is an integer number (12495210).

Almost surely, 2253887852 is an apocalyptic number.

It is an amenable number.

253887852 is an abundant number, since it is smaller than the sum of its proper divisors (345882228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253887852 is a wasteful number, since it uses less digits than its factorization.

253887852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930 (or 928 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 48.

The square root of 253887852 is about 15933.8586663746. The cubic root of 253887852 is about 633.2093325717.

The spelling of 253887852 in words is "two hundred fifty-three million, eight hundred eighty-seven thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 12 137 274 389 397 411 548 778 794 822 1167 1191 1556 1588 1644 2334 2382 4668 4764 53293 54389 106586 108778 154433 159879 163167 213172 217556 308866 319758 326334 463299 617732 639516 652668 926598 1853196 21157321 42314642 63471963 84629284 126943926 253887852