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61906950 = 2335276551
BaseRepresentation
bin1110110000101…
…0000000000110
311022111012101000
43230022000012
5111322010300
610050514130
71351125510
oct354120006
9138435330
1061906950
1131a43676
1218895946
13ca96c41
148316bb0
15567cc00
hex3b0a006

61906950 has 96 divisors (see below), whose sum is σ = 194987520. Its totient is φ = 14148000.

The previous prime is 61906939. The next prime is 61906951. The reversal of 61906950 is 5960916.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61906951) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6175 + ... + 12725.

It is an arithmetic number, because the mean of its divisors is an integer number (2031120).

Almost surely, 261906950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61906950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97493760).

61906950 is an abundant number, since it is smaller than the sum of its proper divisors (133080570).

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

61906950 is a wasteful number, since it uses less digits than its factorization.

61906950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6579 (or 6568 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 61906950 is about 7868.0969744914. The cubic root of 61906950 is about 395.5910608562.

The spelling of 61906950 in words is "sixty-one million, nine hundred six thousand, nine hundred fifty".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 25 27 30 35 42 45 50 54 63 70 75 90 105 126 135 150 175 189 210 225 270 315 350 378 450 525 630 675 945 1050 1350 1575 1890 3150 4725 6551 9450 13102 19653 32755 39306 45857 58959 65510 91714 98265 117918 137571 163775 176877 196530 229285 275142 294795 327550 353754 412713 458570 491325 589590 687855 825426 884385 982650 1146425 1238139 1375710 1473975 1768770 2063565 2292850 2476278 2947950 3439275 4127130 4421925 6190695 6878550 8843850 10317825 12381390 20635650 30953475 61906950