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122430331 = 432847217
BaseRepresentation
bin1110100110000…
…10001101111011
322112101002211201
413103002031323
5222320232311
620052035031
73014432512
oct723021573
9275332751
10122430331
11631217a1
1235002a77
131c4981aa
141238d679
15ab359c1
hex74c237b

122430331 has 4 divisors (see below), whose sum is σ = 125277592. Its totient is φ = 119583072.

The previous prime is 122430323. The next prime is 122430337. The reversal of 122430331 is 133034221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122430331 - 23 = 122430323 is a prime.

It is a super-2 number, since 2×1224303312 = 29978371897539122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122430299 and 122430308.

It is not an unprimeable number, because it can be changed into a prime (122430337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1423566 + ... + 1423651.

It is an arithmetic number, because the mean of its divisors is an integer number (31319398).

Almost surely, 2122430331 is an apocalyptic number.

122430331 is a deficient number, since it is larger than the sum of its proper divisors (2847261).

122430331 is an equidigital number, since it uses as much as digits as its factorization.

122430331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2847260.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 122430331 is about 11064.8240383659. The cubic root of 122430331 is about 496.5500247587.

Adding to 122430331 its reverse (133034221), we get a palindrome (255464552).

The spelling of 122430331 in words is "one hundred twenty-two million, four hundred thirty thousand, three hundred thirty-one".

Divisors: 1 43 2847217 122430331