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122340031 = 11194313613
BaseRepresentation
bin1110100101011…
…00001010111111
322112012111222021
413102230022333
5222304340111
620050101011
73013605322
oct722541277
9275174867
10122340031
116306a970
1234b7a767
131c466068
14123687b9
15ab18d71
hex74ac2bf

122340031 has 16 divisors (see below), whose sum is σ = 143763840. Its totient is φ = 102906720.

The previous prime is 122340017. The next prime is 122340047. The reversal of 122340031 is 130043221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 122340031 - 25 = 122339999 is a prime.

It is a super-2 number, since 2×1223400312 = 29934166370161922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122339987 and 122340014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122340011) 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, 2181 + ... + 15793.

It is an arithmetic number, because the mean of its divisors is an integer number (8985240).

Almost surely, 2122340031 is an apocalyptic number.

122340031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

122340031 is a deficient number, since it is larger than the sum of its proper divisors (21423809).

122340031 is a wasteful number, since it uses less digits than its factorization.

122340031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13686.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 122340031 is about 11060.7427869922. The cubic root of 122340031 is about 496.4279158686.

Adding to 122340031 its reverse (130043221), we get a palindrome (252383252).

The spelling of 122340031 in words is "one hundred twenty-two million, three hundred forty thousand, thirty-one".

Divisors: 1 11 19 43 209 473 817 8987 13613 149743 258647 585359 2845117 6438949 11121821 122340031