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61442330232 = 2332560097093
BaseRepresentation
bin111001001110001111…
…111000111001111000
312212121000120202212110
4321032033320321320
52001313214031412
644120510212320
74303412122053
oct711617707170
9185530522773
1061442330232
112406a659118
12baa8ab40a0
135a4250a02a
142d8c263a9a
1518e91a9d3c
hexe4e3f8e78

61442330232 has 16 divisors (see below), whose sum is σ = 153605825640. Its totient is φ = 20480776736.

The previous prime is 61442330221. The next prime is 61442330239. The reversal of 61442330232 is 23203324416.

It is a self number, because there is not a number n which added to its sum of digits gives 61442330232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61442330239) 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, 1280048523 + ... + 1280048570.

Almost surely, 261442330232 is an apocalyptic number.

It is an amenable number.

61442330232 is an abundant number, since it is smaller than the sum of its proper divisors (92163495408).

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

61442330232 is a wasteful number, since it uses less digits than its factorization.

61442330232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2560097102 (or 2560097098 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 61442330232 its reverse (23203324416), we get a palindrome (84645654648).

The spelling of 61442330232 in words is "sixty-one billion, four hundred forty-two million, three hundred thirty thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 24 2560097093 5120194186 7680291279 10240388372 15360582558 20480776744 30721165116 61442330232