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123040046 = 2129147653
BaseRepresentation
bin1110101010101…
…11000100101110
322120112002012202
413111113010232
5222444240141
620113101502
73022552223
oct725270456
9276462182
10123040046
11634a8898
1235257892
131c64c87c
14124ab94a
15ac0649b
hex755712e

123040046 has 8 divisors (see below), whose sum is σ = 184706904. Its totient is φ = 61471080.

The previous prime is 123040039. The next prime is 123040081. The reversal of 123040046 is 640040321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21245 + ... + 26408.

It is an arithmetic number, because the mean of its divisors is an integer number (23088363).

Almost surely, 2123040046 is an apocalyptic number.

123040046 is a deficient number, since it is larger than the sum of its proper divisors (61666858).

123040046 is a wasteful number, since it uses less digits than its factorization.

123040046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48946.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 123040046 is about 11092.3417725925. The cubic root of 123040046 is about 497.3729493839.

Adding to 123040046 its reverse (640040321), we get a palindrome (763080367).

The spelling of 123040046 in words is "one hundred twenty-three million, forty thousand, forty-six".

Divisors: 1 2 1291 2582 47653 95306 61520023 123040046