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122144012 = 2253576151
BaseRepresentation
bin1110100011111…
…00010100001100
322111211120002022
413101330110030
5222232102022
620041545312
73012130664
oct721742414
9274746068
10122144012
1162a46671
1234aa5238
131c3c7a83
14123171a4
15aacac42
hex747c50c

122144012 has 12 divisors (see below), whose sum is σ = 217785456. Its totient is φ = 59919600.

The previous prime is 122144003. The next prime is 122144039. The reversal of 122144012 is 210441221.

It is a super-2 number, since 2×1221440122 = 29838319334912288, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287864 + ... + 288287.

It is an arithmetic number, because the mean of its divisors is an integer number (18148788).

Almost surely, 2122144012 is an apocalyptic number.

It is an amenable number.

122144012 is a deficient number, since it is larger than the sum of its proper divisors (95641444).

122144012 is a wasteful number, since it uses less digits than its factorization.

122144012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576208 (or 576206 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 122144012 is about 11051.8782114173. The cubic root of 122144012 is about 496.1626406889.

Adding to 122144012 its reverse (210441221), we get a palindrome (332585233).

The spelling of 122144012 in words is "one hundred twenty-two million, one hundred forty-four thousand, twelve".

Divisors: 1 2 4 53 106 212 576151 1152302 2304604 30536003 61072006 122144012