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12407409423 = 321873736039
BaseRepresentation
bin10111000111000101…
…00000101100001111
31012000200201201000100
423203202200230033
5200402244100143
65411101502143
7616316145213
oct134342405417
935020651010
1012407409423
115297728382
1224a3271953
13122969b7a6
14859b90943
154c93e96d3
hex2e38a0b0f

12407409423 has 12 divisors (see below), whose sum is σ = 17931406480. Its totient is φ = 8267178816.

The previous prime is 12407409397. The next prime is 12407409437. The reversal of 12407409423 is 32490470421.

12407409423 is a `hidden beast` number, since 1 + 240 + 7 + 409 + 4 + 2 + 3 = 666.

It is not a de Polignac number, because 12407409423 - 26 = 12407409359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12407409493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 351163 + ... + 384876.

Almost surely, 212407409423 is an apocalyptic number.

12407409423 is a deficient number, since it is larger than the sum of its proper divisors (5523997057).

12407409423 is a wasteful number, since it uses less digits than its factorization.

12407409423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737918 (or 737915 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

Adding to 12407409423 its reverse (32490470421), we get a palindrome (44897879844).

The spelling of 12407409423 in words is "twelve billion, four hundred seven million, four hundred nine thousand, four hundred twenty-three".

Divisors: 1 3 9 1873 5619 16857 736039 2208117 6624351 1378601047 4135803141 12407409423