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123114021 = 3418391193
BaseRepresentation
bin1110101011010…
…01001000100101
322120122211200120
413111221020211
5223004122041
620114432153
73023311002
oct725511045
9276584616
10123114021
1163549428
1235292659
131c677444
14124ca8a9
15ac1d366
hex7569225

123114021 has 16 divisors (see below), whose sum is σ = 168497280. Its totient is φ = 79911680.

The previous prime is 123114011. The next prime is 123114023. The reversal of 123114021 is 120411321.

It is a cyclic number.

It is not a de Polignac number, because 123114021 - 26 = 123113957 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123114023) 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 15 ways as a sum of consecutive naturals, for example, 102601 + ... + 103793.

It is an arithmetic number, because the mean of its divisors is an integer number (10531080).

Almost surely, 2123114021 is an apocalyptic number.

It is an amenable number.

123114021 is a deficient number, since it is larger than the sum of its proper divisors (45383259).

123114021 is a wasteful number, since it uses less digits than its factorization.

123114021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2076.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 123114021 is about 11095.6757793295. The cubic root of 123114021 is about 497.4726074326.

Adding to 123114021 its reverse (120411321), we get a palindrome (243525342).

The spelling of 123114021 in words is "one hundred twenty-three million, one hundred fourteen thousand, twenty-one".

Divisors: 1 3 41 123 839 1193 2517 3579 34399 48913 103197 146739 1000927 3002781 41038007 123114021