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19039068 = 2232528863
BaseRepresentation
bin100100010100…
…0001101011100
31022211021200200
41020220031130
514333222233
61520023500
7320554326
oct110501534
938737620
1019039068
11a824374
126461b90
133c37c29
142758616
151a11313
hex122835c

19039068 has 18 divisors (see below), whose sum is σ = 48126624. Its totient is φ = 6346344.

The previous prime is 19039061. The next prime is 19039073. The reversal of 19039068 is 86093091.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×190390682 = 724972220617248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 528863 = 19039068 / (1 + 9 + 0 + 3 + 9 + 0 + 6 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19039061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 264396 + ... + 264467.

Almost surely, 219039068 is an apocalyptic number.

19039068 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

19039068 is an abundant number, since it is smaller than the sum of its proper divisors (29087556).

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

19039068 is a wasteful number, since it uses less digits than its factorization.

19039068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528873 (or 528868 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 19039068 is about 4363.3780491725. The cubic root of 19039068 is about 267.0229328449.

The spelling of 19039068 in words is "nineteen million, thirty-nine thousand, sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 528863 1057726 1586589 2115452 3173178 4759767 6346356 9519534 19039068