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61205335342 = 2109280758419
BaseRepresentation
bin111001000000000111…
…110100110100101110
312211222111122011222221
4321000013310310232
52000322031212332
644041202425554
74264503523624
oct710007646456
9184874564887
1061205335342
1123a588a8378
12ba416622ba
135a0539bc78
142d689b1514
1518d3494297
hexe401f4d2e

61205335342 has 8 divisors (see below), whose sum is σ = 92650278600. Its totient is φ = 30321909144.

The previous prime is 61205335309. The next prime is 61205335349. The reversal of 61205335342 is 24353350216.

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

It is a junction number, because it is equal to n+sod(n) for n = 61205335298 and 61205335307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61205335349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140378992 + ... + 140379427.

It is an arithmetic number, because the mean of its divisors is an integer number (11581284825).

Almost surely, 261205335342 is an apocalyptic number.

61205335342 is a deficient number, since it is larger than the sum of its proper divisors (31444943258).

61205335342 is a wasteful number, since it uses less digits than its factorization.

61205335342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280758530.

The product of its (nonzero) digits is 64800, while the sum is 34.

Adding to 61205335342 its reverse (24353350216), we get a palindrome (85558685558).

The spelling of 61205335342 in words is "sixty-one billion, two hundred five million, three hundred thirty-five thousand, three hundred forty-two".

Divisors: 1 2 109 218 280758419 561516838 30602667671 61205335342