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19285045 = 513296693
BaseRepresentation
bin100100110010…
…0010000110101
31100021210002221
41021210100311
514414110140
61525202341
7322630423
oct111442065
940253087
1019285045
11a98215a
1265603b1
133cc2b90
1427c0113
151a5e14a
hex1264435

19285045 has 8 divisors (see below), whose sum is σ = 24922296. Its totient is φ = 14241216.

The previous prime is 19285033. The next prime is 19285051. The reversal of 19285045 is 54058291.

It can be written as a sum of positive squares in 4 ways, for example, as 820836 + 18464209 = 906^2 + 4297^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 19285045 - 29 = 19284533 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19285045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148282 + ... + 148411.

It is an arithmetic number, because the mean of its divisors is an integer number (3115287).

Almost surely, 219285045 is an apocalyptic number.

It is an amenable number.

19285045 is a deficient number, since it is larger than the sum of its proper divisors (5637251).

19285045 is a wasteful number, since it uses less digits than its factorization.

19285045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296711.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 19285045 is about 4391.4741260766. The cubic root of 19285045 is about 268.1679583167.

The spelling of 19285045 in words is "nineteen million, two hundred eighty-five thousand, forty-five".

Divisors: 1 5 13 65 296693 1483465 3857009 19285045