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61271431046 = 275741762329
BaseRepresentation
bin111001000100000011…
…111101011110000110
312212011010000012020222
4321010003331132012
52000440441243141
644051523224342
74266235366520
oct710403753606
9185133005228
1061271431046
1123a92142021
12ba5b8180b2
135a15ca1657
142d73698a10
1518d919d14b
hexe440fd786

61271431046 has 16 divisors (see below), whose sum is σ = 105055172640. Its totient is φ = 26254576320.

The previous prime is 61271431031. The next prime is 61271431171. The reversal of 61271431046 is 64013417216.

61271431046 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 61271430997 and 61271431015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300791 + ... + 461538.

It is an arithmetic number, because the mean of its divisors is an integer number (6565948290).

Almost surely, 261271431046 is an apocalyptic number.

61271431046 is a deficient number, since it is larger than the sum of its proper divisors (43783741594).

61271431046 is a wasteful number, since it uses less digits than its factorization.

61271431046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768079.

The product of its (nonzero) digits is 24192, while the sum is 35.

The spelling of 61271431046 in words is "sixty-one billion, two hundred seventy-one million, four hundred thirty-one thousand, forty-six".

Divisors: 1 2 7 14 5741 11482 40187 80374 762329 1524658 5336303 10672606 4376530789 8753061578 30635715523 61271431046