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190885190 = 2519088519
BaseRepresentation
bin10110110000010…
…10110101000110
3111022011222020212
423120022311012
5342331311230
630535155422
74505332406
oct1330126506
9438158225
10190885190
1198827961
1253b15b72
1330715622
141b4cc806
1511b58895
hexb60ad46

190885190 has 8 divisors (see below), whose sum is σ = 343593360. Its totient is φ = 76354072.

The previous prime is 190885187. The next prime is 190885207. The reversal of 190885190 is 91588091.

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

It is a super-2 number, since 2×1908851902 = 72874311522672200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9544250 + ... + 9544269.

It is an arithmetic number, because the mean of its divisors is an integer number (42949170).

Almost surely, 2190885190 is an apocalyptic number.

190885190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190885190 is a deficient number, since it is larger than the sum of its proper divisors (152708170).

190885190 is a wasteful number, since it uses less digits than its factorization.

190885190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19088526.

The product of its (nonzero) digits is 25920, while the sum is 41.

The square root of 190885190 is about 13816.1206566822. The cubic root of 190885190 is about 575.7811085552.

The spelling of 190885190 in words is "one hundred ninety million, eight hundred eighty-five thousand, one hundred ninety".

Divisors: 1 2 5 10 19088519 38177038 95442595 190885190