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502221057 = 31353242971
BaseRepresentation
bin11101111011110…
…100100100000001
31022000000110202220
4131323310210001
52012032033212
6121500201253
715305544222
oct3573644401
91260013686
10502221057
11238544128
12120239229
1380082030
144a9b3249
152e15638c
hex1def4901

502221057 has 16 divisors (see below), whose sum is σ = 734747328. Its totient is φ = 303226560.

The previous prime is 502221019. The next prime is 502221059. The reversal of 502221057 is 750122205.

It is not a de Polignac number, because 502221057 - 211 = 502219009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (502221059) 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, 119419 + ... + 123552.

It is an arithmetic number, because the mean of its divisors is an integer number (45921708).

Almost surely, 2502221057 is an apocalyptic number.

It is an amenable number.

502221057 is a deficient number, since it is larger than the sum of its proper divisors (232526271).

502221057 is a wasteful number, since it uses less digits than its factorization.

502221057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243040.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 502221057 is about 22410.2890878275. The cubic root of 502221057 is about 794.8740261611.

The spelling of 502221057 in words is "five hundred two million, two hundred twenty-one thousand, fifty-seven".

Divisors: 1 3 13 39 53 159 689 2067 242971 728913 3158623 9475869 12877463 38632389 167407019 502221057