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122144122 = 21923139753
BaseRepresentation
bin1110100011111…
…00010101111010
322111211120020101
413101330111322
5222232102442
620041550014
73012131212
oct721742572
9274746211
10122144122
1162a46761
1234aa530a
131c3c7b39
1412317242
15aacacb7
hex747c57a

122144122 has 16 divisors (see below), whose sum is σ = 201245760. Its totient is φ = 55341792.

The previous prime is 122144093. The next prime is 122144129. The reversal of 122144122 is 221441221.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 122144122.

It is not an unprimeable number, because it can be changed into a prime (122144129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69003 + ... + 70750.

It is an arithmetic number, because the mean of its divisors is an integer number (12577860).

Almost surely, 2122144122 is an apocalyptic number.

122144122 is a deficient number, since it is larger than the sum of its proper divisors (79101638).

122144122 is a wasteful number, since it uses less digits than its factorization.

122144122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139797.

The product of its digits is 256, while the sum is 19.

The square root of 122144122 is about 11051.8831879458. The cubic root of 122144122 is about 496.1627896329.

Adding to 122144122 its reverse (221441221), we get a palindrome (343585343).

The spelling of 122144122 in words is "one hundred twenty-two million, one hundred forty-four thousand, one hundred twenty-two".

Divisors: 1 2 19 23 38 46 437 874 139753 279506 2655307 3214319 5310614 6428638 61072061 122144122