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143968872 = 2335998703
BaseRepresentation
bin10001001010011…
…00101001101000
3101000220101011110
420211030221220
5243324000442
622141430320
73365500215
oct1045145150
9330811143
10143968872
11742a2a43
124026b3a0
1323a999a8
1415198b0c
15c98c69c
hex894ca68

143968872 has 16 divisors (see below), whose sum is σ = 359922240. Its totient is φ = 47989616.

The previous prime is 143968861. The next prime is 143968897. The reversal of 143968872 is 278869341.

It is a super-2 number, since 2×1439688722 = 41454072209904768, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2999328 + ... + 2999375.

It is an arithmetic number, because the mean of its divisors is an integer number (22495140).

Almost surely, 2143968872 is an apocalyptic number.

143968872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

143968872 is an abundant number, since it is smaller than the sum of its proper divisors (215953368).

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

143968872 is a wasteful number, since it uses less digits than its factorization.

143968872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5998712 (or 5998708 counting only the distinct ones).

The product of its digits is 580608, while the sum is 48.

The square root of 143968872 is about 11998.7029299004. The cubic root of 143968872 is about 524.1105083246.

The spelling of 143968872 in words is "one hundred forty-three million, nine hundred sixty-eight thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 24 5998703 11997406 17996109 23994812 35992218 47989624 71984436 143968872