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1920008 = 231072243
BaseRepresentation
bin111010100110000001000
310121112202102
413110300020
5442420013
6105052532
722214456
oct7246010
93545672
101920008
1110a1592
12787148
13522bcc
1437d9d6
1527dd58
hex1d4c08

1920008 has 16 divisors (see below), whose sum is σ = 3635280. Its totient is φ = 950608.

The previous prime is 1920001. The next prime is 1920011. The reversal of 1920008 is 8000291.

It is not an unprimeable number, because it can be changed into a prime (1920001) 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, 266 + ... + 1977.

It is an arithmetic number, because the mean of its divisors is an integer number (227205).

21920008 is an apocalyptic number.

It is an amenable number.

1920008 is a deficient number, since it is larger than the sum of its proper divisors (1715272).

1920008 is a wasteful number, since it uses less digits than its factorization.

1920008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2356 (or 2352 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1920008 is about 1385.6435328034. The cubic root of 1920008 is about 124.2894728619.

Adding to 1920008 its reverse (8000291), we get a palindrome (9920299).

The spelling of 1920008 in words is "one million, nine hundred twenty thousand, eight".

Divisors: 1 2 4 8 107 214 428 856 2243 4486 8972 17944 240001 480002 960004 1920008