Base | Representation |
---|---|
bin | 10111110100010111… |
… | …00000001011010110 |
3 | 1020000011110210210001 |
4 | 23322023200023112 |
5 | 202142014111344 |
6 | 5512511121514 |
7 | 631610602555 |
oct | 137213401326 |
9 | 36004423701 |
10 | 12787253974 |
11 | 54720871a0 |
12 | 258a51329a |
13 | 128a2a3c91 |
14 | 8943c9d9c |
15 | 4ec92aed4 |
hex | 2fa2e02d6 |
12787253974 has 8 divisors (see below), whose sum is σ = 20924597448. Its totient is φ = 5812388160.
The previous prime is 12787253971. The next prime is 12787253981. The reversal of 12787253974 is 47935278721.
12787253974 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12787253971) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290619387 + ... + 290619430.
It is an arithmetic number, because the mean of its divisors is an integer number (2615574681).
Almost surely, 212787253974 is an apocalyptic number.
12787253974 is a deficient number, since it is larger than the sum of its proper divisors (8137343474).
12787253974 is a wasteful number, since it uses less digits than its factorization.
12787253974 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 581238830.
The product of its digits is 5927040, while the sum is 55.
The spelling of 12787253974 in words is "twelve billion, seven hundred eighty-seven million, two hundred fifty-three thousand, nine hundred seventy-four".
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