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61834980 = 22351030583
BaseRepresentation
bin1110101111100…
…0011011100100
311022100112122110
43223320123210
5111312204410
610045201020
71350405624
oct353703344
9138315573
1061834980
11319a4599
1218860170
13ca7025c
1482d8884
155666720
hex3af86e4

61834980 has 24 divisors (see below), whose sum is σ = 173138112. Its totient is φ = 16489312.

The previous prime is 61834973. The next prime is 61834991. The reversal of 61834980 is 8943816.

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, 515232 + ... + 515351.

It is an arithmetic number, because the mean of its divisors is an integer number (7214088).

Almost surely, 261834980 is an apocalyptic number.

61834980 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61834980 is an abundant number, since it is smaller than the sum of its proper divisors (111303132).

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

61834980 is a wasteful number, since it uses less digits than its factorization.

61834980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030595 (or 1030593 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 61834980 is about 7863.5221116240. The cubic root of 61834980 is about 395.4377031225.

The spelling of 61834980 in words is "sixty-one million, eight hundred thirty-four thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1030583 2061166 3091749 4122332 5152915 6183498 10305830 12366996 15458745 20611660 30917490 61834980