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61842938 = 2792571523
BaseRepresentation
bin1110101111101…
…0010111111010
311022100221120012
43223322113322
5111312433223
610045301522
71350441053
oct353722772
9138327505
1061842938
11319aa573
12188648a2
13ca73a71
1482db72a
155668c78
hex3afa5fa

61842938 has 16 divisors (see below), whose sum is σ = 94366080. Its totient is φ = 30391296.

The previous prime is 61842931. The next prime is 61842953. The reversal of 61842938 is 83924816.

It is a junction number, because it is equal to n+sod(n) for n = 61842895 and 61842904.

It is not an unprimeable number, because it can be changed into a prime (61842931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39845 + ... + 41367.

It is an arithmetic number, because the mean of its divisors is an integer number (5897880).

Almost surely, 261842938 is an apocalyptic number.

61842938 is a deficient number, since it is larger than the sum of its proper divisors (32523142).

61842938 is a wasteful number, since it uses less digits than its factorization.

61842938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1861.

The product of its digits is 82944, while the sum is 41.

The square root of 61842938 is about 7864.0281026965. The cubic root of 61842938 is about 395.4546663271.

The spelling of 61842938 in words is "sixty-one million, eight hundred forty-two thousand, nine hundred thirty-eight".

Divisors: 1 2 79 158 257 514 1523 3046 20303 40606 120317 240634 391411 782822 30921469 61842938