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1918914 = 23319819
BaseRepresentation
bin111010100011111000010
310121111020220
413110133002
5442401124
6105043510
722211334
oct7243702
93544226
101918914
1110a0788
12786596
1352256a
1437d454
1527d879
hex1d47c2

1918914 has 8 divisors (see below), whose sum is σ = 3837840. Its totient is φ = 639636.

The previous prime is 1918897. The next prime is 1918919. The reversal of 1918914 is 4198191.

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

1918914 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1918919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159904 + ... + 159915.

It is an arithmetic number, because the mean of its divisors is an integer number (479730).

21918914 is an apocalyptic number.

1918914 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1918914 is a wasteful number, since it uses less digits than its factorization.

1918914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319824.

The product of its digits is 2592, while the sum is 33.

The square root of 1918914 is about 1385.2487141304. The cubic root of 1918914 is about 124.2658621067.

The spelling of 1918914 in words is "one million, nine hundred eighteen thousand, nine hundred fourteen".

Divisors: 1 2 3 6 319819 639638 959457 1918914