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19235130 = 2352361457
BaseRepresentation
bin100100101100…
…0000100111010
31100012020122020
41021120010322
514411011010
61524135310
7322332045
oct111300472
940166566
1019235130
11a948702
126537536
133ca6245
1427a9c5c
151a4e470
hex125813a

19235130 has 64 divisors (see below), whose sum is σ = 49068288. Its totient is φ = 4815360.

The previous prime is 19235129. The next prime is 19235171. The reversal of 19235130 is 3153291.

It is a happy number.

It is a super-2 number, since 2×192351302 = 739980452233800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 19235130.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41862 + ... + 42318.

It is an arithmetic number, because the mean of its divisors is an integer number (766692).

Almost surely, 219235130 is an apocalyptic number.

19235130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 19235130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24534144).

19235130 is an abundant number, since it is smaller than the sum of its proper divisors (29833158).

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

19235130 is a wasteful number, since it uses less digits than its factorization.

19235130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551.

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 19235130 is about 4385.7872725430. The cubic root of 19235130 is about 267.9363942764.

The spelling of 19235130 in words is "nineteen million, two hundred thirty-five thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 23 30 46 61 69 115 122 138 183 230 305 345 366 457 610 690 914 915 1371 1403 1830 2285 2742 2806 4209 4570 6855 7015 8418 10511 13710 14030 21022 21045 27877 31533 42090 52555 55754 63066 83631 105110 139385 157665 167262 278770 315330 418155 641171 836310 1282342 1923513 3205855 3847026 6411710 9617565 19235130