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61493288804 = 2221797055219
BaseRepresentation
bin111001010001010010…
…010001111101100100
312212201120110201212222
4321101102101331210
52001414240220204
644125530331512
74304601221243
oct712122217544
9185646421788
1061493288804
11240963a4042
12bb01b89b98
135a4cc3c82c
142d94d2a95a
1518ed8c3abe
hexe51491f64

61493288804 has 12 divisors (see below), whose sum is σ = 107662657200. Its totient is φ = 30732529608.

The previous prime is 61493288771. The next prime is 61493288821. The reversal of 61493288804 is 40888239416.

It is an unprimeable number.

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, 3518894 + ... + 3536325.

It is an arithmetic number, because the mean of its divisors is an integer number (8971888100).

Almost surely, 261493288804 is an apocalyptic number.

It is an amenable number.

61493288804 is a deficient number, since it is larger than the sum of its proper divisors (46169368396).

61493288804 is a wasteful number, since it uses less digits than its factorization.

61493288804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7057402 (or 7057400 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 53.

The spelling of 61493288804 in words is "sixty-one billion, four hundred ninety-three million, two hundred eighty-eight thousand, eight hundred four".

Divisors: 1 2 4 2179 4358 8716 7055219 14110438 28220876 15373322201 30746644402 61493288804