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61683834 = 2347218737
BaseRepresentation
bin1110101101001…
…1100001111010
311022001212022110
43223103201322
5111242340314
610042033150
71346206152
oct353234172
9138055273
1061683834
1131900a83
12187a87b6
13ca19514
148299762
155636a59
hex3ad387a

61683834 has 16 divisors (see below), whose sum is σ = 125993088. Its totient is φ = 20123712.

The previous prime is 61683829. The next prime is 61683883. The reversal of 61683834 is 43838616.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 61683792 and 61683801.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109087 + ... + 109650.

It is an arithmetic number, because the mean of its divisors is an integer number (7874568).

Almost surely, 261683834 is an apocalyptic number.

61683834 is an abundant number, since it is smaller than the sum of its proper divisors (64309254).

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

61683834 is a wasteful number, since it uses less digits than its factorization.

61683834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218789.

The product of its digits is 82944, while the sum is 39.

The square root of 61683834 is about 7853.9056526037. The cubic root of 61683834 is about 395.1152449074.

The spelling of 61683834 in words is "sixty-one million, six hundred eighty-three thousand, eight hundred thirty-four".

Divisors: 1 2 3 6 47 94 141 282 218737 437474 656211 1312422 10280639 20561278 30841917 61683834