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19020914 = 211864587
BaseRepresentation
bin100100010001…
…1110001110010
31022210100210022
41020203301302
514332132124
61515403442
7320450363
oct110436162
938710708
1019020914
11a811770
126453582
133c2c8a3
142751b6a
151a0ac5e
hex1223c72

19020914 has 8 divisors (see below), whose sum is σ = 31125168. Its totient is φ = 8645860.

The previous prime is 19020913. The next prime is 19020961. The reversal of 19020914 is 41902091.

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

It is not an unprimeable number, because it can be changed into a prime (19020913) 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, 432272 + ... + 432315.

It is an arithmetic number, because the mean of its divisors is an integer number (3890646).

Almost surely, 219020914 is an apocalyptic number.

19020914 is a deficient number, since it is larger than the sum of its proper divisors (12104254).

19020914 is a wasteful number, since it uses less digits than its factorization.

19020914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864600.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 19020914 is about 4361.2972840658. The cubic root of 19020914 is about 266.9380359044.

The spelling of 19020914 in words is "nineteen million, twenty thousand, nine hundred fourteen".

Divisors: 1 2 11 22 864587 1729174 9510457 19020914