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122220052 = 2230555013
BaseRepresentation
bin1110100100011…
…10111000010100
322111222102101121
413102032320110
5222242020202
620043333324
73012565453
oct722167024
9274872347
10122220052
1162a98809
1234b21244
131c423576
1412336b9a
15aae3537
hex748ee14

122220052 has 6 divisors (see below), whose sum is σ = 213885098. Its totient is φ = 61110024.

The previous prime is 122220041. The next prime is 122220113. The reversal of 122220052 is 250022221.

It can be written as a sum of positive squares in only one way, i.e., 100280196 + 21939856 = 10014^2 + 4684^2 .

It is a super-2 number, since 2×1222200522 = 29875482221765408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15277503 + ... + 15277510.

Almost surely, 2122220052 is an apocalyptic number.

It is an amenable number.

122220052 is a deficient number, since it is larger than the sum of its proper divisors (91665046).

122220052 is a wasteful number, since it uses less digits than its factorization.

122220052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30555017 (or 30555015 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 122220052 is about 11055.3178154226. The cubic root of 122220052 is about 496.2655803258.

Adding to 122220052 its reverse (250022221), we get a palindrome (372242273).

The spelling of 122220052 in words is "one hundred twenty-two million, two hundred twenty thousand, fifty-two".

Divisors: 1 2 4 30555013 61110026 122220052