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190006860 = 22353166781
BaseRepresentation
bin10110101001101…
…00011001001100
3111020112100102010
423110310121030
5342120204420
630504301220
74465013601
oct1324643114
9436470363
10190006860
1198287a6a
1253771810
13304988c4
141b3406a8
1511a334e0
hexb53464c

190006860 has 24 divisors (see below), whose sum is σ = 532019376. Its totient is φ = 50668480.

The previous prime is 190006849. The next prime is 190006891. The reversal of 190006860 is 68600091.

It is a super-2 number, since 2×1900068602 = 72205213694119200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 7 ways as a sum of consecutive naturals, for example, 1583331 + ... + 1583450.

It is an arithmetic number, because the mean of its divisors is an integer number (22167474).

Almost surely, 2190006860 is an apocalyptic number.

190006860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190006860 is an abundant number, since it is smaller than the sum of its proper divisors (342012516).

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

190006860 is a wasteful number, since it uses less digits than its factorization.

190006860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3166793 (or 3166791 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 190006860 is about 13784.2975881980. The cubic root of 190006860 is about 574.8966266593.

The spelling of 190006860 in words is "one hundred ninety million, six thousand, eight hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 3166781 6333562 9500343 12667124 15833905 19000686 31667810 38001372 47501715 63335620 95003430 190006860