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141878331881 = 11136785917239
BaseRepresentation
bin1000010000100010011…
…0111000100111101001
3111120012202010000200122
42010020212320213221
54311031323110011
6145102241013025
713151606631356
oct2041046704751
9446182100618
10141878331881
115519668a740
12235b6924175
13104c0a7a090
146c1cc9562d
153a55a9e3db
hex21089b89e9

141878331881 has 32 divisors (see below), whose sum is σ = 169376793600. Its totient is φ = 117138415680.

The previous prime is 141878331869. The next prime is 141878331953. The reversal of 141878331881 is 188133878141.

It is not a de Polignac number, because 141878331881 - 222 = 141874137577 is a prime.

It is a super-2 number, since 2×1418783318812 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (141878331481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8221460 + ... + 8238698.

It is an arithmetic number, because the mean of its divisors is an integer number (5293024800).

Almost surely, 2141878331881 is an apocalyptic number.

141878331881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

141878331881 is a deficient number, since it is larger than the sum of its proper divisors (27498461719).

141878331881 is a wasteful number, since it uses less digits than its factorization.

141878331881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18189.

The product of its digits is 1032192, while the sum is 53.

The spelling of 141878331881 in words is "one hundred forty-one billion, eight hundred seventy-eight million, three hundred thirty-one thousand, eight hundred eighty-one".

Divisors: 1 11 13 67 143 737 859 871 9449 9581 11167 17239 57553 122837 189629 224107 633083 748189 1155013 2465177 8230079 12705143 14808301 15015169 162891311 165166859 192507913 992156167 2117587043 10913717837 12898030171 141878331881