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122145036 = 22313782981
BaseRepresentation
bin1110100011111…
…00100100001100
322111211121111020
413101330210030
5222232120121
620041554140
73012133656
oct721744414
9274747436
10122145036
1162a47412
1234aa5950
131c3c8390
14123176d6
15aacb1c6
hex747c90c

122145036 has 24 divisors (see below), whose sum is σ = 306928944. Its totient is φ = 37583040.

The previous prime is 122145031. The next prime is 122145043. The reversal of 122145036 is 630541221.

It is a junction number, because it is equal to n+sod(n) for n = 122144997 and 122145015.

It is not an unprimeable number, because it can be changed into a prime (122145031) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 391335 + ... + 391646.

It is an arithmetic number, because the mean of its divisors is an integer number (12788706).

Almost surely, 2122145036 is an apocalyptic number.

It is an amenable number.

122145036 is an abundant number, since it is smaller than the sum of its proper divisors (184783908).

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

122145036 is a wasteful number, since it uses less digits than its factorization.

122145036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783001 (or 782999 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 122145036 is about 11051.9245382874. The cubic root of 122145036 is about 496.1640272192.

Adding to 122145036 its reverse (630541221), we get a palindrome (752686257).

The spelling of 122145036 in words is "one hundred twenty-two million, one hundred forty-five thousand, thirty-six".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 782981 1565962 2348943 3131924 4697886 9395772 10178753 20357506 30536259 40715012 61072518 122145036