Search a number
-
+
12319770 = 235410659
BaseRepresentation
bin101110111111…
…110000011010
3212011220112210
4232333300122
511123213040
61120015550
7206500461
oct56776032
925156483
1012319770
116a55031
1241615b6
132724708
1418c99d8
151135480
hexbbfc1a

12319770 has 16 divisors (see below), whose sum is σ = 29567520. Its totient is φ = 3285264.

The previous prime is 12319763. The next prime is 12319777. The reversal of 12319770 is 7791321.

It is an interprime number because it is at equal distance from previous prime (12319763) and next prime (12319777).

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 410659 = 12319770 / (1 + 2 + 3 + 1 + 9 + 7 + 7 + 0).

It is not an unprimeable number, because it can be changed into a prime (12319777) 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, 205300 + ... + 205359.

It is an arithmetic number, because the mean of its divisors is an integer number (1847970).

Almost surely, 212319770 is an apocalyptic number.

12319770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12319770 is an abundant number, since it is smaller than the sum of its proper divisors (17247750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12319770 is a wasteful number, since it uses less digits than its factorization.

12319770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410669.

The product of its (nonzero) digits is 2646, while the sum is 30.

The square root of 12319770 is about 3509.9529911382. The cubic root of 12319770 is about 230.9586327978.

The spelling of 12319770 in words is "twelve million, three hundred nineteen thousand, seven hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 410659 821318 1231977 2053295 2463954 4106590 6159885 12319770