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122124142 = 2747185599
BaseRepresentation
bin1110100011101…
…11011101101110
322111210112211101
413101313131232
5222230433032
620041313314
73012016030
oct721673556
9274715741
10122124142
1162a32748
1234a9583a
131c3bba0a
141230dc50
15aac4de7
hex747776e

122124142 has 16 divisors (see below), whose sum is σ = 213811200. Its totient is φ = 51225048.

The previous prime is 122124131. The next prime is 122124143. The reversal of 122124142 is 241421221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122124143) 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, 92142 + ... + 93457.

It is an arithmetic number, because the mean of its divisors is an integer number (13363200).

Almost surely, 2122124142 is an apocalyptic number.

122124142 is a deficient number, since it is larger than the sum of its proper divisors (91687058).

122124142 is a wasteful number, since it uses less digits than its factorization.

122124142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185655.

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

The square root of 122124142 is about 11050.9792326291. The cubic root of 122124142 is about 496.1357345089.

Adding to 122124142 its reverse (241421221), we get a palindrome (363545363).

The spelling of 122124142 in words is "one hundred twenty-two million, one hundred twenty-four thousand, one hundred forty-two".

Divisors: 1 2 7 14 47 94 329 658 185599 371198 1299193 2598386 8723153 17446306 61062071 122124142