Base | Representation |
---|---|
bin | 10010000111110001… |
… | …110000101111001101 |
3 | 1212020001100120211202 |
4 | 102013301300233031 |
5 | 304322201304104 |
6 | 12534440555245 |
7 | 1256116615520 |
oct | 220761605715 |
9 | 55201316752 |
10 | 19457838029 |
11 | 8285495783 |
12 | 3930482b25 |
13 | 1ab127cc36 |
14 | d282b6bb7 |
15 | 78d37551e |
hex | 487c70bcd |
19457838029 has 8 divisors (see below), whose sum is σ = 22238729088. Its totient is φ = 16677246960.
The previous prime is 19457837953. The next prime is 19457838067. The reversal of 19457838029 is 92083875491.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 19457838029 - 212 = 19457833933 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 (19457838229) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87464 + ... + 215790.
It is an arithmetic number, because the mean of its divisors is an integer number (2779841136).
Almost surely, 219457838029 is an apocalyptic number.
It is an amenable number.
19457838029 is a deficient number, since it is larger than the sum of its proper divisors (2780891059).
19457838029 is a wasteful number, since it uses less digits than its factorization.
19457838029 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 149995.
The product of its (nonzero) digits is 4354560, while the sum is 56.
The spelling of 19457838029 in words is "nineteen billion, four hundred fifty-seven million, eight hundred thirty-eight thousand, twenty-nine".
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