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19034830 = 251903483
BaseRepresentation
bin100100010011…
…1001011001110
31022211001212201
41020213023032
514333103310
61515552114
7320536063
oct110471316
938731781
1019034830
11a821171
12645b63a
133c36019
142756c6a
151a0ee3a
hex12272ce

19034830 has 8 divisors (see below), whose sum is σ = 34262712. Its totient is φ = 7613928.

The previous prime is 19034803. The next prime is 19034833. The reversal of 19034830 is 3843091.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19034833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 951732 + ... + 951751.

It is an arithmetic number, because the mean of its divisors is an integer number (4282839).

Almost surely, 219034830 is an apocalyptic number.

19034830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19034830 is a deficient number, since it is larger than the sum of its proper divisors (15227882).

19034830 is a wasteful number, since it uses less digits than its factorization.

19034830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1903490.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 19034830 is about 4362.8923892299. The cubic root of 19034830 is about 267.0031187243.

The spelling of 19034830 in words is "nineteen million, thirty-four thousand, eight hundred thirty".

Divisors: 1 2 5 10 1903483 3806966 9517415 19034830