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228152252 = 22712273539
BaseRepresentation
bin11011001100101…
…01001110111100
3120220022100001102
431212111032330
5431401333002
634350032232
75440155626
oct1546251674
9526270042
10228152252
11107871189
12644a8678
1338363243
142242dc16
151506aa02
hexd9953bc

228152252 has 24 divisors (see below), whose sum is σ = 406788480. Its totient is φ = 111942320.

The previous prime is 228152231. The next prime is 228152263. The reversal of 228152252 is 252251822.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62699 + ... + 66237.

It is an arithmetic number, because the mean of its divisors is an integer number (16949520).

Almost surely, 2228152252 is an apocalyptic number.

It is an amenable number.

228152252 is a deficient number, since it is larger than the sum of its proper divisors (178636228).

228152252 is a wasteful number, since it uses less digits than its factorization.

228152252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3841 (or 3839 counting only the distinct ones).

The product of its digits is 6400, while the sum is 29.

The square root of 228152252 is about 15104.7095966788. The cubic root of 228152252 is about 611.0474273497.

The spelling of 228152252 in words is "two hundred twenty-eight million, one hundred fifty-two thousand, two hundred fifty-two".

Divisors: 1 2 4 71 142 227 284 454 908 3539 7078 14156 16117 32234 64468 251269 502538 803353 1005076 1606706 3213412 57038063 114076126 228152252