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122520414 = 2320420069
BaseRepresentation
bin1110100110110…
…00001101011110
322112112200102010
413103120031132
5222331123124
620054012050
73015256242
oct723301536
9275480363
10122520414
1163183445
1235047026
131c4ca1b3
14123b4422
15ab52529
hex74d835e

122520414 has 8 divisors (see below), whose sum is σ = 245040840. Its totient is φ = 40840136.

The previous prime is 122520413. The next prime is 122520427. The reversal of 122520414 is 414025221.

It is a sphenic number, since it is the product of 3 distinct primes.

122520414 is an admirable number.

It is a super-2 number, since 2×1225204142 = 30022503693462792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122520413) 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, 10210029 + ... + 10210040.

It is an arithmetic number, because the mean of its divisors is an integer number (30630105).

Almost surely, 2122520414 is an apocalyptic number.

122520414 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

122520414 is a wasteful number, since it uses less digits than its factorization.

122520414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20420074.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 122520414 is about 11068.8939826886. The cubic root of 122520414 is about 496.6717803977.

Adding to 122520414 its reverse (414025221), we get a palindrome (536545635).

The spelling of 122520414 in words is "one hundred twenty-two million, five hundred twenty thousand, four hundred fourteen".

Divisors: 1 2 3 6 20420069 40840138 61260207 122520414