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122423412 = 22310201951
BaseRepresentation
bin1110100110000…
…00100001110100
322112100202100110
413103000201310
5222320022122
620051543020
73014403366
oct723004164
9275322313
10122423412
1163117581
1234bbaa70
131c494cb7
141238ad36
15ab3390c
hex74c0874

122423412 has 12 divisors (see below), whose sum is σ = 285654656. Its totient is φ = 40807800.

The previous prime is 122423393. The next prime is 122423429. The reversal of 122423412 is 214324221.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5100964 + ... + 5100987.

Almost surely, 2122423412 is an apocalyptic number.

122423412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122423412 is an abundant number, since it is smaller than the sum of its proper divisors (163231244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122423412 is a wasteful number, since it uses less digits than its factorization.

122423412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10201958 (or 10201956 counting only the distinct ones).

The product of its digits is 768, while the sum is 21.

The square root of 122423412 is about 11064.5113764685. The cubic root of 122423412 is about 496.5406706106.

Adding to 122423412 its reverse (214324221), we get a palindrome (336747633).

The spelling of 122423412 in words is "one hundred twenty-two million, four hundred twenty-three thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 10201951 20403902 30605853 40807804 61211706 122423412