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19140270 = 2351374657
BaseRepresentation
bin100100100000…
…0111010101110
31100000102111220
41021000322232
514344442040
61522124210
7321455352
oct111007256
940012456
1019140270
11a893406
1264b0666
133c72006
142783462
151a312d0
hex1240eae

19140270 has 32 divisors (see below), whose sum is σ = 46281888. Its totient is φ = 5065728.

The previous prime is 19140269. The next prime is 19140271. The reversal of 19140270 is 7204191.

It is an interprime number because it is at equal distance from previous prime (19140269) and next prime (19140271).

It is a self number, because there is not a number n which added to its sum of digits gives 19140270.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19140271) 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 15 ways as a sum of consecutive naturals, for example, 1782 + ... + 6438.

It is an arithmetic number, because the mean of its divisors is an integer number (1446309).

Almost surely, 219140270 is an apocalyptic number.

19140270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19140270 is an abundant number, since it is smaller than the sum of its proper divisors (27141618).

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

19140270 is a wasteful number, since it uses less digits than its factorization.

19140270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4804.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 19140270 is about 4374.9594283833. The cubic root of 19140270 is about 267.4952163817.

The spelling of 19140270 in words is "nineteen million, one hundred forty thousand, two hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 137 274 411 685 822 1370 2055 4110 4657 9314 13971 23285 27942 46570 69855 139710 638009 1276018 1914027 3190045 3828054 6380090 9570135 19140270