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122468889 = 3192113083
BaseRepresentation
bin1110100110010…
…11101000011001
322112110001201210
413103023220121
5222323001024
620052533333
73014653104
oct723135031
9275401653
10122468889
1163148764
1235021249
131c4ac8ca
141239d73b
15ab42129
hex74cba19

122468889 has 12 divisors (see below), whose sum is σ = 172340016. Its totient is φ = 77348088.

The previous prime is 122468873. The next prime is 122468891. The reversal of 122468889 is 988864221.

It is not a de Polignac number, because 122468889 - 24 = 122468873 is a prime.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (122468809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55459 + ... + 57624.

It is an arithmetic number, because the mean of its divisors is an integer number (14361668).

Almost surely, 2122468889 is an apocalyptic number.

122468889 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

122468889 is a deficient number, since it is larger than the sum of its proper divisors (49871127).

122468889 is a wasteful number, since it uses less digits than its factorization.

122468889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113124 (or 113105 counting only the distinct ones).

The product of its digits is 442368, while the sum is 48.

The square root of 122468889 is about 11066.5662696249. The cubic root of 122468889 is about 496.6021468271.

The spelling of 122468889 in words is "one hundred twenty-two million, four hundred sixty-eight thousand, eight hundred eighty-nine".

Divisors: 1 3 19 57 361 1083 113083 339249 2148577 6445731 40822963 122468889