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143980959 = 3389123377
BaseRepresentation
bin10001001010011…
…11100110011111
3101000220222202010
420211033212133
5243324342314
622142002303
73365550363
oct1045174637
9330828663
10143980959
1174301031
1240276393
1323aa2345
141519d2a3
15c991059
hex894f99f

143980959 has 8 divisors (see below), whose sum is σ = 192469680. Its totient is φ = 95739776.

The previous prime is 143980951. The next prime is 143980979. The reversal of 143980959 is 959089341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 143980959 - 23 = 143980951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143980951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60522 + ... + 62855.

It is an arithmetic number, because the mean of its divisors is an integer number (24058710).

Almost surely, 2143980959 is an apocalyptic number.

143980959 is a deficient number, since it is larger than the sum of its proper divisors (48488721).

143980959 is a wasteful number, since it uses less digits than its factorization.

143980959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123769.

The product of its (nonzero) digits is 349920, while the sum is 48.

The square root of 143980959 is about 11999.2065987714. The cubic root of 143980959 is about 524.1251752601.

The spelling of 143980959 in words is "one hundred forty-three million, nine hundred eighty thousand, nine hundred fifty-nine".

Divisors: 1 3 389 1167 123377 370131 47993653 143980959