Base | Representation |
---|---|
bin | 100100011111… |
… | …0001010111111 |
3 | 1022222212002100 |
4 | 1020332022333 |
5 | 14344112043 |
6 | 1522000143 |
7 | 321410514 |
oct | 110761277 |
9 | 38885070 |
10 | 19129023 |
11 | a885a11 |
12 | 64a6053 |
13 | 3c69b64 |
14 | 277d30b |
15 | 1a2ccd3 |
hex | 123e2bf |
19129023 has 12 divisors (see below), whose sum is σ = 28273960. Its totient is φ = 12455856.
The previous prime is 19129021. The next prime is 19129027. The reversal of 19129023 is 32092191.
It is not a de Polignac number, because 19129023 - 21 = 19129021 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 (19129021) 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, 24328 + ... + 25101.
Almost surely, 219129023 is an apocalyptic number.
19129023 is a deficient number, since it is larger than the sum of its proper divisors (9144937).
19129023 is a wasteful number, since it uses less digits than its factorization.
19129023 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 49478 (or 49475 counting only the distinct ones).
The product of its (nonzero) digits is 972, while the sum is 27.
The square root of 19129023 is about 4373.6738561534. The cubic root of 19129023 is about 267.4428118933.
The spelling of 19129023 in words is "nineteen million, one hundred twenty-nine thousand, twenty-three".
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