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190656834 = 2331776139
BaseRepresentation
bin10110101110100…
…11000101000010
3111021202101000020
423113103011002
5342302004314
630530234310
74503361554
oct1327230502
9437671006
10190656834
1198691335
1253a25996
13306656c4
141b46d4d4
1511b10da9
hexb5d3142

190656834 has 8 divisors (see below), whose sum is σ = 381313680. Its totient is φ = 63552276.

The previous prime is 190656761. The next prime is 190656841. The reversal of 190656834 is 438656091.

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

190656834 is an admirable number.

It is a super-4 number, since 4×1906568344 (a number of 34 digits) contains 4444 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 15888064 + ... + 15888075.

It is an arithmetic number, because the mean of its divisors is an integer number (47664210).

Almost surely, 2190656834 is an apocalyptic number.

190656834 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

190656834 is a wasteful number, since it uses less digits than its factorization.

190656834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31776144.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 190656834 is about 13807.8540693331. The cubic root of 190656834 is about 575.5514145757.

The spelling of 190656834 in words is "one hundred ninety million, six hundred fifty-six thousand, eight hundred thirty-four".

Divisors: 1 2 3 6 31776139 63552278 95328417 190656834