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61834830 = 2352061161
BaseRepresentation
bin1110101111100…
…0011001001110
311022100112102220
43223320121032
5111312203310
610045200210
71350405321
oct353703116
9138315386
1061834830
11319a4472
1218860066
13ca70175
1482d87b8
155666670
hex3af864e

61834830 has 16 divisors (see below), whose sum is σ = 148403664. Its totient is φ = 16489280.

The previous prime is 61834819. The next prime is 61834837. The reversal of 61834830 is 3843816.

It is a super-2 number, since 2×618348302 = 7647092402257800, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 61834791 and 61834800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61834837) 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, 1030551 + ... + 1030610.

It is an arithmetic number, because the mean of its divisors is an integer number (9275229).

Almost surely, 261834830 is an apocalyptic number.

61834830 is an abundant number, since it is smaller than the sum of its proper divisors (86568834).

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

61834830 is a wasteful number, since it uses less digits than its factorization.

61834830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2061171.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 61834830 is about 7863.5125739074. The cubic root of 61834830 is about 395.4373833698.

The spelling of 61834830 in words is "sixty-one million, eight hundred thirty-four thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 2061161 4122322 6183483 10305805 12366966 20611610 30917415 61834830