Search a number
-
+
19128960057 = 316738181557
BaseRepresentation
bin10001110100001011…
…001100010000111001
31211101010111212002010
4101310023030100321
5303134003210212
612442052000133
71245014322564
oct216413142071
954333455063
1019128960057
1181268878a9
12385a300049
131a5b0b0a9c
14cd67474db
1576e56003c
hex4742cc439

19128960057 has 8 divisors (see below), whose sum is σ = 25658006976. Its totient is φ = 12676276592.

The previous prime is 19128960047. The next prime is 19128960073. The reversal of 19128960057 is 75006982191.

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 19128960057 - 222 = 19124765753 is a prime.

It is a super-2 number, since 2×191289600572 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 19128959988 and 19128960015.

It is not an unprimeable number, because it can be changed into a prime (19128960047) 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, 19090278 + ... + 19091279.

It is an arithmetic number, because the mean of its divisors is an integer number (3207250872).

Almost surely, 219128960057 is an apocalyptic number.

It is an amenable number.

19128960057 is a deficient number, since it is larger than the sum of its proper divisors (6529046919).

19128960057 is a wasteful number, since it uses less digits than its factorization.

19128960057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38181727.

The product of its (nonzero) digits is 272160, while the sum is 48.

The spelling of 19128960057 in words is "nineteen billion, one hundred twenty-eight million, nine hundred sixty thousand, fifty-seven".

Divisors: 1 3 167 501 38181557 114544671 6376320019 19128960057