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123013329 = 3163251561
BaseRepresentation
bin1110101010100…
…00100011010001
322120110201120020
413111100203101
5222442411304
620112334053
73022411305
oct725204321
9276421506
10123013329
116348a80a
1235244329
131c64066a
14124a1d05
15abed5d9
hex75508d1

123013329 has 8 divisors (see below), whose sum is σ = 165024672. Its totient is φ = 81505440.

The previous prime is 123013327. The next prime is 123013337. The reversal of 123013329 is 923310321.

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

It is not a de Polignac number, because 123013329 - 21 = 123013327 is a prime.

It is a super-2 number, since 2×1230133292 = 30264558223324482, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 123013299 and 123013308.

It is not an unprimeable number, because it can be changed into a prime (123013321) 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, 125292 + ... + 126269.

It is an arithmetic number, because the mean of its divisors is an integer number (20628084).

Almost surely, 2123013329 is an apocalyptic number.

It is an amenable number.

123013329 is a deficient number, since it is larger than the sum of its proper divisors (42011343).

123013329 is a wasteful number, since it uses less digits than its factorization.

123013329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251727.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 123013329 is about 11091.1374078586. The cubic root of 123013329 is about 497.3369468101.

The spelling of 123013329 in words is "one hundred twenty-three million, thirteen thousand, three hundred twenty-nine".

Divisors: 1 3 163 489 251561 754683 41004443 123013329