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20055190 = 252005519
BaseRepresentation
bin100110010000…
…0010010010110
31101201220112211
41030200102112
520113231230
61553504034
7332315641
oct114402226
941656484
1020055190
1110358841
12687201a
13420259c
142940a58
151b6242a
hex1320496

20055190 has 8 divisors (see below), whose sum is σ = 36099360. Its totient is φ = 8022072.

The previous prime is 20055187. The next prime is 20055199. The reversal of 20055190 is 9155002.

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

It is a super-2 number, since 2×200551902 = 804421291872200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20055199) 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, 1002750 + ... + 1002769.

It is an arithmetic number, because the mean of its divisors is an integer number (4512420).

Almost surely, 220055190 is an apocalyptic number.

20055190 is a deficient number, since it is larger than the sum of its proper divisors (16044170).

20055190 is a wasteful number, since it uses less digits than its factorization.

20055190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005526.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 20055190 is about 4478.3021336216. The cubic root of 20055190 is about 271.6912135263.

The spelling of 20055190 in words is "twenty million, fifty-five thousand, one hundred ninety".

Divisors: 1 2 5 10 2005519 4011038 10027595 20055190