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19852230 = 235661741
BaseRepresentation
bin100101110111…
…0101111000110
31101100121010210
41023232233012
520040232410
61545300250
7330512136
oct113565706
941317123
1019852230
111022a302
126794686
1341610a8
1428caac6
151b22220
hex12eebc6

19852230 has 16 divisors (see below), whose sum is σ = 47645424. Its totient is φ = 5293920.

The previous prime is 19852229. The next prime is 19852237. The reversal of 19852230 is 3225891.

It is a happy number.

It is a super-2 number, since 2×198522302 = 788222071945800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 661741 = 19852230 / (1 + 9 + 8 + 5 + 2 + 2 + 3 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19852237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330841 + ... + 330900.

It is an arithmetic number, because the mean of its divisors is an integer number (2977839).

Almost surely, 219852230 is an apocalyptic number.

19852230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19852230 is an abundant number, since it is smaller than the sum of its proper divisors (27793194).

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

19852230 is a wasteful number, since it uses less digits than its factorization.

19852230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661751.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 19852230 is about 4455.5841367884. The cubic root of 19852230 is about 270.7715926061.

The spelling of 19852230 in words is "nineteen million, eight hundred fifty-two thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 661741 1323482 1985223 3308705 3970446 6617410 9926115 19852230