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253220052 = 22383972621
BaseRepresentation
bin11110001011111…
…01010011010100
3122122110220121110
433011331103110
51004311020202
641043215020
76163222611
oct1705752324
9578426543
10253220052
1111aa32a78
1270977470
13405cc267
14258b7508
151736d26c
hexf17d4d4

253220052 has 48 divisors (see below), whose sum is σ = 604360512. Its totient is φ = 82498560.

The previous prime is 253220027. The next prime is 253220069. The reversal of 253220052 is 250022352.

It is a congruent number.

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, 95302 + ... + 97922.

It is an arithmetic number, because the mean of its divisors is an integer number (12590844).

Almost surely, 2253220052 is an apocalyptic number.

It is an amenable number.

253220052 is an abundant number, since it is smaller than the sum of its proper divisors (351140460).

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

253220052 is a wasteful number, since it uses less digits than its factorization.

253220052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2808 (or 2806 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 253220052 is about 15912.8894924838. The cubic root of 253220052 is about 632.6536692764.

The spelling of 253220052 in words is "two hundred fifty-three million, two hundred twenty thousand, fifty-two".

Divisors: 1 2 3 4 6 12 83 97 166 194 249 291 332 388 498 582 996 1164 2621 5242 7863 8051 10484 15726 16102 24153 31452 32204 48306 96612 217543 254237 435086 508474 652629 762711 870172 1016948 1305258 1525422 2610516 3050844 21101671 42203342 63305013 84406684 126610026 253220052