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228122564 = 2257030641
BaseRepresentation
bin11011001100011…
…01111111000100
3120220020211022212
431212031333010
5431344410224
634345242552
75440003235
oct1546157704
9526224285
10228122564
1110785094a
1264493458
1338352887
142242308c
1515061d0e
hexd98dfc4

228122564 has 6 divisors (see below), whose sum is σ = 399214494. Its totient is φ = 114061280.

The previous prime is 228122513. The next prime is 228122581. The reversal of 228122564 is 465221822.

It can be written as a sum of positive squares in only one way, i.e., 160224964 + 67897600 = 12658^2 + 8240^2 .

It is a super-3 number, since 3×2281225643 (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 228122564.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28515317 + ... + 28515324.

It is an arithmetic number, because the mean of its divisors is an integer number (66535749).

Almost surely, 2228122564 is an apocalyptic number.

It is an amenable number.

228122564 is a deficient number, since it is larger than the sum of its proper divisors (171091930).

228122564 is a wasteful number, since it uses less digits than its factorization.

228122564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57030645 (or 57030643 counting only the distinct ones).

The product of its digits is 15360, while the sum is 32.

The square root of 228122564 is about 15103.7268248601. The cubic root of 228122564 is about 611.0209222962.

The spelling of 228122564 in words is "two hundred twenty-eight million, one hundred twenty-two thousand, five hundred sixty-four".

Divisors: 1 2 4 57030641 114061282 228122564