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8161411471 = 23241936821
BaseRepresentation
bin1111001100111010…
…10100000110001111
3210001210010122210221
413212131110012033
5113203310131341
63425503212211
7406150565353
oct74635240617
923053118727
108161411471
1135089a4264
1216b92a7067
13a00b09175
14575cc3463
1532b780ed1
hex1e675418f

8161411471 has 12 divisors (see below), whose sum is σ = 8552277720. Its totient is φ = 7787724560.

The previous prime is 8161411469. The next prime is 8161411501. The reversal of 8161411471 is 1741141618.

8161411471 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8161411471 - 21 = 8161411469 is a prime.

It is a super-3 number, since 3×81614114713 (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8161411171) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 203241 + ... + 240061.

It is an arithmetic number, because the mean of its divisors is an integer number (712689810).

Almost surely, 28161411471 is an apocalyptic number.

8161411471 is a deficient number, since it is larger than the sum of its proper divisors (390866249).

8161411471 is a wasteful number, since it uses less digits than its factorization.

8161411471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37286 (or 37263 counting only the distinct ones).

The product of its digits is 5376, while the sum is 34.

The square root of 8161411471 is about 90340.5306105737. The cubic root of 8161411471 is about 2013.3614923922.

The spelling of 8161411471 in words is "eight billion, one hundred sixty-one million, four hundred eleven thousand, four hundred seventy-one".

Divisors: 1 23 419 529 9637 36821 221651 846883 15427999 19478309 354843977 8161411471