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61047542382 = 2316760925691
BaseRepresentation
bin111000110110101101…
…111001001001101110
312211120111201110202020
4320312231321021232
52000011132324012
644013404411010
74260546356061
oct706655711156
9184514643666
1061047542382
1123987823172
12b9b8846a66
1359ab7a1c58
142d51a588d8
1518c46c5a8c
hexe36b7926e

61047542382 has 16 divisors (see below), whose sum is σ = 122826195072. Its totient is φ = 20227329080.

The previous prime is 61047542377. The next prime is 61047542389. The reversal of 61047542382 is 28324574016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61047542389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30461844 + ... + 30463847.

It is an arithmetic number, because the mean of its divisors is an integer number (7676637192).

Almost surely, 261047542382 is an apocalyptic number.

61047542382 is an abundant number, since it is smaller than the sum of its proper divisors (61778652690).

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

61047542382 is a wasteful number, since it uses less digits than its factorization.

61047542382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60925863.

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 61047542382 in words is "sixty-one billion, forty-seven million, five hundred forty-two thousand, three hundred eighty-two".

Divisors: 1 2 3 6 167 334 501 1002 60925691 121851382 182777073 365554146 10174590397 20349180794 30523771191 61047542382