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122514421 = 239351197
BaseRepresentation
bin1110100110101…
…10101111110101
322112112101012011
413103112233311
5222330430141
620053524221
73015232621
oct723265765
9275471164
10122514421
1163179997
1235043671
131c4c7553
14123b2181
15ab50881
hex74d6bf5

122514421 has 4 divisors (see below), whose sum is σ = 122568012. Its totient is φ = 122460832.

The previous prime is 122514419. The next prime is 122514433. The reversal of 122514421 is 124415221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 64160100 + 58354321 = 8010^2 + 7639^2 .

It is a cyclic number.

It is not a de Polignac number, because 122514421 - 21 = 122514419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122514392 and 122514401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122514401) 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, 23206 + ... + 27991.

It is an arithmetic number, because the mean of its divisors is an integer number (30642003).

Almost surely, 2122514421 is an apocalyptic number.

It is an amenable number.

122514421 is a deficient number, since it is larger than the sum of its proper divisors (53591).

122514421 is an equidigital number, since it uses as much as digits as its factorization.

122514421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53590.

The product of its digits is 640, while the sum is 22.

The square root of 122514421 is about 11068.6232657906. The cubic root of 122514421 is about 496.6636821485.

Adding to 122514421 its reverse (124415221), we get a palindrome (246929642).

The spelling of 122514421 in words is "one hundred twenty-two million, five hundred fourteen thousand, four hundred twenty-one".

Divisors: 1 2393 51197 122514421