Base | Representation |
---|---|
bin | 10111001001110001… |
… | …11101110000110111 |
3 | 1012002021101010102220 |
4 | 23210320331300313 |
5 | 200424044313022 |
6 | 5413231333423 |
7 | 620012606361 |
oct | 134470756067 |
9 | 35067333386 |
10 | 12430072887 |
11 | 52a94a7811 |
12 | 24aa981273 |
13 | 12312a531b |
14 | 85cbadd31 |
15 | 4cb3c485c |
hex | 2e4e3dc37 |
12430072887 has 16 divisors (see below), whose sum is σ = 17147988480. Its totient is φ = 7999538400.
The previous prime is 12430072861. The next prime is 12430072913. The reversal of 12430072887 is 78827003421.
It is an interprime number because it is at equal distance from previous prime (12430072861) and next prime (12430072913).
It is not a de Polignac number, because 12430072887 - 214 = 12430056503 is a prime.
It is a super-2 number, since 2×124300728872 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12430072807) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 714462 + ... + 731652.
It is an arithmetic number, because the mean of its divisors is an integer number (1071749280).
Almost surely, 212430072887 is an apocalyptic number.
12430072887 is a deficient number, since it is larger than the sum of its proper divisors (4717915593).
12430072887 is a wasteful number, since it uses less digits than its factorization.
12430072887 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25534.
The product of its (nonzero) digits is 150528, while the sum is 42.
The spelling of 12430072887 in words is "twelve billion, four hundred thirty million, seventy-two thousand, eight hundred eighty-seven".
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