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143145140544 = 2633725514639
BaseRepresentation
bin1000010101010000011…
…1011000000101000000
3111200111000211120111000
42011110013120011000
54321130123444134
6145432053052000
713225161422160
oct2052407300500
9450430746430
10143145140544
115578677784a
12238ab027000
13106633635c3
146cdd2165a0
153acbdd4e99
hex21541d8140

143145140544 has 224 divisors, whose sum is σ = 481229619200. Its totient is φ = 40873766400.

The previous prime is 143145140543. The next prime is 143145140597. The reversal of 143145140544 is 445041541341.

143145140544 is a `hidden beast` number, since 1 + 4 + 31 + 45 + 1 + 40 + 544 = 666.

It is a tau number, because it is divible by the number of its divisors (224).

It is a super-2 number, since 2×1431451405442 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 143145140499 and 143145140508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143145140543) 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, 30854577 + ... + 30859215.

Almost surely, 2143145140544 is an apocalyptic number.

143145140544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143145140544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240614809600).

143145140544 is an abundant number, since it is smaller than the sum of its proper divisors (338084478656).

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

143145140544 is a wasteful number, since it uses less digits than its factorization.

143145140544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7218 (or 7202 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

Adding to 143145140544 its reverse (445041541341), we get a palindrome (588186681885).

The spelling of 143145140544 in words is "one hundred forty-three billion, one hundred forty-five million, one hundred forty thousand, five hundred forty-four".