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123013472 = 2538310037
BaseRepresentation
bin1110101010100…
…00100101100000
322120110201202112
413111100211200
5222442412342
620112334452
73022411601
oct725204540
9276421675
10123013472
116348a92a
1235244428
131c64074a
14124a1da8
15abed682
hex7550960

123013472 has 24 divisors (see below), whose sum is σ = 242839296. Its totient is φ = 61340032.

The previous prime is 123013469. The next prime is 123013483. The reversal of 123013472 is 274310321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7238 + ... + 17274.

It is an arithmetic number, because the mean of its divisors is an integer number (10118304).

Almost surely, 2123013472 is an apocalyptic number.

It is an amenable number.

123013472 is a deficient number, since it is larger than the sum of its proper divisors (119825824).

123013472 is a wasteful number, since it uses less digits than its factorization.

123013472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10430 (or 10422 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 123013472 is about 11091.1438544453. The cubic root of 123013472 is about 497.3371395240.

Adding to 123013472 its reverse (274310321), we get a palindrome (397323793).

The spelling of 123013472 in words is "one hundred twenty-three million, thirteen thousand, four hundred seventy-two".

Divisors: 1 2 4 8 16 32 383 766 1532 3064 6128 10037 12256 20074 40148 80296 160592 321184 3844171 7688342 15376684 30753368 61506736 123013472