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190016380 = 22591110429
BaseRepresentation
bin10110101001101…
…10101101111100
3111020112211110201
423110312231330
5342121011010
630504413244
74465053421
oct1324665574
9436484421
10190016380
1198294134
1253777224
13304a0038
141b343d48
1511a3623a
hexb536b7c

190016380 has 24 divisors (see below), whose sum is σ = 399510720. Its totient is φ = 75915840.

The previous prime is 190016369. The next prime is 190016383. The reversal of 190016380 is 83610091.

It is a happy number.

It is a super-2 number, since 2×1900163802 = 72212449336608800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190016383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13006 + ... + 23434.

It is an arithmetic number, because the mean of its divisors is an integer number (16646280).

Almost surely, 2190016380 is an apocalyptic number.

190016380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190016380 is an abundant number, since it is smaller than the sum of its proper divisors (209494340).

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

190016380 is a wasteful number, since it uses less digits than its factorization.

190016380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11349 (or 11347 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 190016380 is about 13784.6429043338. The cubic root of 190016380 is about 574.9062279345.

The spelling of 190016380 in words is "one hundred ninety million, sixteen thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 911 1822 3644 4555 9110 10429 18220 20858 41716 52145 104290 208580 9500819 19001638 38003276 47504095 95008190 190016380