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19116970 = 251911697
BaseRepresentation
bin100100011101…
…1001110101010
31022222020112221
41020323032222
514343220340
61521424254
7321330415
oct110731652
938866487
1019116970
11a877954
12649b08a
133c64522
142778b7c
151a2944a
hex123b3aa

19116970 has 8 divisors (see below), whose sum is σ = 34410564. Its totient is φ = 7646784.

The previous prime is 19116967. The next prime is 19116997. The reversal of 19116970 is 7961191.

It can be written as a sum of positive squares in 2 ways, for example, as 15578809 + 3538161 = 3947^2 + 1881^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 955839 + ... + 955858.

Almost surely, 219116970 is an apocalyptic number.

19116970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19116970 is a deficient number, since it is larger than the sum of its proper divisors (15293594).

19116970 is a wasteful number, since it uses less digits than its factorization.

19116970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911704.

The product of its (nonzero) digits is 3402, while the sum is 34.

The square root of 19116970 is about 4372.2957356519. The cubic root of 19116970 is about 267.3866291063.

It can be divided in two parts, 191 and 16970, that added together give a square (17161 = 1312).

The spelling of 19116970 in words is "nineteen million, one hundred sixteen thousand, nine hundred seventy".

Divisors: 1 2 5 10 1911697 3823394 9558485 19116970