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122121414 = 2326784523
BaseRepresentation
bin1110100011101…
…10110011000110
322111210102002100
413101312303012
5222230341124
620041252530
73012005052
oct721666306
9274712070
10122121414
1162a30698
1234a94146
131c3ba6bc
141230cc62
15aac41c9
hex7476cc6

122121414 has 12 divisors (see below), whose sum is σ = 264596436. Its totient is φ = 40707132.

The previous prime is 122121413. The next prime is 122121437. The reversal of 122121414 is 414121221.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 6784523 = 122121414 / (1 + 2 + 2 + 1 + 2 + 1 + 4 + 1 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122121413) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3392244 + ... + 3392279.

It is an arithmetic number, because the mean of its divisors is an integer number (22049703).

Almost surely, 2122121414 is an apocalyptic number.

122121414 is an abundant number, since it is smaller than the sum of its proper divisors (142475022).

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

122121414 is a wasteful number, since it uses less digits than its factorization.

122121414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6784531 (or 6784528 counting only the distinct ones).

The product of its digits is 128, while the sum is 18.

The square root of 122121414 is about 11050.8558039638. The cubic root of 122121414 is about 496.1320402670.

Adding to 122121414 its reverse (414121221), we get a palindrome (536242635).

The spelling of 122121414 in words is "one hundred twenty-two million, one hundred twenty-one thousand, four hundred fourteen".

Divisors: 1 2 3 6 9 18 6784523 13569046 20353569 40707138 61060707 122121414