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61230000 = 2435413157
BaseRepresentation
bin1110100110010…
…0101110110000
311021012210202210
43221210232300
5111133330000
610024212120
71342306056
oct351445660
9137183683
1061230000
1131621007
121860a040
13c8baa90
1481bc1d6
155597350
hex3a64bb0

61230000 has 200 divisors, whose sum is σ = 214218928. Its totient is φ = 14976000.

The previous prime is 61229983. The next prime is 61230007. The reversal of 61230000 is 3216.

61230000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (200).

It is a super-2 number, since 2×612300002 = 7498225800000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (61230007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 389922 + ... + 390078.

Almost surely, 261230000 is an apocalyptic number.

61230000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61230000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107109464).

61230000 is an abundant number, since it is smaller than the sum of its proper divisors (152988928).

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

61230000 is a wasteful number, since it uses less digits than its factorization.

61230000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 61230000 is about 7824.9600637959. The cubic root of 61230000 is about 394.1438488034.

Adding to 61230000 its reverse (3216), we get a palindrome (61233216).

The spelling of 61230000 in words is "sixty-one million, two hundred thirty thousand".