Search a number
-
+
12890250190 = 251289025019
BaseRepresentation
bin11000000000101000…
…11001101111001110
31020021100021120000201
430000110121233032
5202344401001230
65531030444114
7634301214226
oct140024315716
936240246021
1012890250190
115515234834
1225b8b0363a
1312a572649c
148a3d5b086
155069c35ca
hex300519bce

12890250190 has 8 divisors (see below), whose sum is σ = 23202450360. Its totient is φ = 5156100072.

The previous prime is 12890250103. The next prime is 12890250193. The reversal of 12890250190 is 9105209821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×128902501902 (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 (12890250193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 644512500 + ... + 644512519.

It is an arithmetic number, because the mean of its divisors is an integer number (2900306295).

Almost surely, 212890250190 is an apocalyptic number.

12890250190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12890250190 is a deficient number, since it is larger than the sum of its proper divisors (10312200170).

12890250190 is a wasteful number, since it uses less digits than its factorization.

12890250190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289025026.

The product of its (nonzero) digits is 12960, while the sum is 37.

The spelling of 12890250190 in words is "twelve billion, eight hundred ninety million, two hundred fifty thousand, one hundred ninety".

Divisors: 1 2 5 10 1289025019 2578050038 6445125095 12890250190