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190420200 = 233352179197
BaseRepresentation
bin10110101100110…
…01010011101000
3111021022100102000
423112121103220
5342221421300
630521211000
74501354635
oct1326312350
9437270360
10190420200
119853a573
1253930a60
13305b1a99
141b40b18c
1511ab5c00
hexb5994e8

190420200 has 192 divisors, whose sum is σ = 662904000. Its totient is φ = 50238720.

The previous prime is 190420193. The next prime is 190420253. The reversal of 190420200 is 2024091.

190420200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 966502 + ... + 966698.

It is an arithmetic number, because the mean of its divisors is an integer number (3452625).

Almost surely, 2190420200 is an apocalyptic number.

190420200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190420200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331452000).

190420200 is an abundant number, since it is smaller than the sum of its proper divisors (472483800).

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

190420200 is a wasteful number, since it uses less digits than its factorization.

190420200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 190420200 is about 13799.2825900479. The cubic root of 190420200 is about 575.3132005103.

Adding to 190420200 its reverse (2024091), we get a palindrome (192444291).

The spelling of 190420200 in words is "one hundred ninety million, four hundred twenty thousand, two hundred".