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122420395 = 5317431063
BaseRepresentation
bin1110100101111…
…11110010101011
322112100121012201
413102333302223
5222314423040
620051521031
73014361526
oct722776253
9275317181
10122420395
1163115289
1234bb9177
131c493806
1412389bbd
15ab32a9a
hex74bfcab

122420395 has 16 divisors (see below), whose sum is σ = 151990272. Its totient is φ = 94560480.

The previous prime is 122420393. The next prime is 122420413. The reversal of 122420395 is 593024221.

It is not a de Polignac number, because 122420395 - 21 = 122420393 is a prime.

It is a super-2 number, since 2×1224203952 = 29973506223912050, which contains 22 as substring.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (122420393) 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, 114634 + ... + 115696.

It is an arithmetic number, because the mean of its divisors is an integer number (9499392).

Almost surely, 2122420395 is an apocalyptic number.

122420395 is a deficient number, since it is larger than the sum of its proper divisors (29569877).

122420395 is a wasteful number, since it uses less digits than its factorization.

122420395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 122420395 is about 11064.3750388352. The cubic root of 122420395 is about 496.5365916644.

The spelling of 122420395 in words is "one hundred twenty-two million, four hundred twenty thousand, three hundred ninety-five".

Divisors: 1 5 31 155 743 1063 3715 5315 23033 32953 115165 164765 789809 3949045 24484079 122420395