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61235045238 = 2310205840873
BaseRepresentation
bin111001000001111001…
…001010001101110110
312212001120112121022110
4321001321022031312
52000402132421423
644044143311450
74265314203453
oct710171121566
9185046477273
1061235045238
1123a7364a904
12ba4b5ab586
135a0b5a1ba3
142d6c90682a
1518d5db2193
hexe41e4a376

61235045238 has 8 divisors (see below), whose sum is σ = 122470090488. Its totient is φ = 20411681744.

The previous prime is 61235045231. The next prime is 61235045239. The reversal of 61235045238 is 83254053216.

It is a happy number.

61235045238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

61235045238 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 61235045196 and 61235045205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61235045231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5102920431 + ... + 5102920442.

It is an arithmetic number, because the mean of its divisors is an integer number (15308761311).

Almost surely, 261235045238 is an apocalyptic number.

61235045238 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61235045238 is a wasteful number, since it uses less digits than its factorization.

61235045238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10205840878.

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 61235045238 in words is "sixty-one billion, two hundred thirty-five million, forty-five thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 10205840873 20411681746 30617522619 61235045238