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190700660 = 22512775079
BaseRepresentation
bin10110101110111…
…01110001110100
3111021211121010102
423113131301310
5342304410120
630531213232
74503633413
oct1327356164
9437747112
10190700660
1198711257
1253a47218
133067c637
141b48147a
1511b1dd75
hexb5ddc74

190700660 has 24 divisors (see below), whose sum is σ = 403630080. Its totient is φ = 75678624.

The previous prime is 190700651. The next prime is 190700677. The reversal of 190700660 is 66007091.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 35000 + ... + 40079.

It is an arithmetic number, because the mean of its divisors is an integer number (16817920).

Almost surely, 2190700660 is an apocalyptic number.

190700660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190700660 is an abundant number, since it is smaller than the sum of its proper divisors (212929420).

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

190700660 is a wasteful number, since it uses less digits than its factorization.

190700660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75215 (or 75213 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 190700660 is about 13809.4409734790. The cubic root of 190700660 is about 575.5955115767.

The spelling of 190700660 in words is "one hundred ninety million, seven hundred thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 127 254 508 635 1270 2540 75079 150158 300316 375395 750790 1501580 9535033 19070066 38140132 47675165 95350330 190700660