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61682833845 = 3257191906439
BaseRepresentation
bin111001011100100101…
…010101100110110101
312220012210010121210200
4321130211111212311
52002311301140340
644200421111113
74312362302553
oct713445254665
9186183117720
1061682833845
1124183396036
12bb55558499
135a802a6169
142db218abd3
151910365330
hexe5c9559b5

61682833845 has 24 divisors (see below), whose sum is σ = 107065670400. Its totient is φ = 32851739616.

The previous prime is 61682833783. The next prime is 61682833853. The reversal of 61682833845 is 54833828616.

It is not a de Polignac number, because 61682833845 - 27 = 61682833717 is a prime.

It is a super-2 number, since 2×616828338452 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61682833791 and 61682833800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 920865 + ... + 985574.

It is an arithmetic number, because the mean of its divisors is an integer number (4461069600).

Almost surely, 261682833845 is an apocalyptic number.

It is an amenable number.

61682833845 is a deficient number, since it is larger than the sum of its proper divisors (45382836555).

61682833845 is a wasteful number, since it uses less digits than its factorization.

61682833845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1907169 (or 1907166 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 54.

The spelling of 61682833845 in words is "sixty-one billion, six hundred eighty-two million, eight hundred thirty-three thousand, eight hundred forty-five".

Divisors: 1 3 5 9 15 45 719 2157 3595 6471 10785 32355 1906439 5719317 9532195 17157951 28596585 85789755 1370729641 4112188923 6853648205 12336566769 20560944615 61682833845