Search a number
-
+
123393192 = 23313395491
BaseRepresentation
bin1110101101011…
…01010010101000
322121012000122020
413112231102220
5223042040232
620124424440
73025552626
oct726552250
9277160566
10123393192
116371a14a
12353a8120
131c744530
1412560516
15ac75e2c
hex75ad4a8

123393192 has 32 divisors (see below), whose sum is σ = 332213280. Its totient is φ = 37967040.

The previous prime is 123393167. The next prime is 123393197. The reversal of 123393192 is 291393321.

It is not an unprimeable number, because it can be changed into a prime (123393197) 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, 197434 + ... + 198057.

It is an arithmetic number, because the mean of its divisors is an integer number (10381665).

Almost surely, 2123393192 is an apocalyptic number.

123393192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123393192 is an abundant number, since it is smaller than the sum of its proper divisors (208820088).

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

123393192 is a wasteful number, since it uses less digits than its factorization.

123393192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395513 (or 395509 counting only the distinct ones).

The product of its digits is 8748, while the sum is 33.

The square root of 123393192 is about 11108.2488268854. The cubic root of 123393192 is about 497.8483433626.

The spelling of 123393192 in words is "one hundred twenty-three million, three hundred ninety-three thousand, one hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 395491 790982 1186473 1581964 2372946 3163928 4745892 5141383 9491784 10282766 15424149 20565532 30848298 41131064 61696596 123393192