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122100052 = 22172297841
BaseRepresentation
bin1110100011100…
…01100101010100
322111202022210011
413101301211110
5222224200202
620041010004
73011555554
oct721614524
9274668704
10122100052
1162a16638
1234a83904
131c3b0a69
1412305164
15aabcbd7
hex7471954

122100052 has 24 divisors (see below), whose sum is σ = 227261160. Its totient is φ = 57200640.

The previous prime is 122100029. The next prime is 122100053. The reversal of 122100052 is 250001221.

It can be written as a sum of positive squares in 4 ways, for example, as 53640976 + 68459076 = 7324^2 + 8274^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122100053) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 11652 + ... + 19492.

It is an arithmetic number, because the mean of its divisors is an integer number (9469215).

Almost surely, 2122100052 is an apocalyptic number.

It is an amenable number.

122100052 is a deficient number, since it is larger than the sum of its proper divisors (105161108).

122100052 is a wasteful number, since it uses less digits than its factorization.

122100052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8091 (or 8089 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 122100052 is about 11049.8892302140. The cubic root of 122100052 is about 496.1031100673.

Adding to 122100052 its reverse (250001221), we get a palindrome (372101273).

The spelling of 122100052 in words is "one hundred twenty-two million, one hundred thousand, fifty-two".

Divisors: 1 2 4 17 34 68 229 458 916 3893 7786 7841 15572 15682 31364 133297 266594 533188 1795589 3591178 7182356 30525013 61050026 122100052