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143888056 = 23134729437
BaseRepresentation
bin10001001001110…
…00111010111000
3101000202021022021
420210320322320
5243313404211
622140004224
73365012464
oct1044707270
9330667267
10143888056
1174248254
1240230674
1323a6bc80
14151774a4
15c973771
hex8938eb8

143888056 has 32 divisors (see below), whose sum is σ = 296735040. Its totient is φ = 64994688.

The previous prime is 143888047. The next prime is 143888071. The reversal of 143888056 is 650888341.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9831 + ... + 19606.

It is an arithmetic number, because the mean of its divisors is an integer number (9272970).

Almost surely, 2143888056 is an apocalyptic number.

It is an amenable number.

143888056 is an abundant number, since it is smaller than the sum of its proper divisors (152846984).

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

143888056 is a wasteful number, since it uses less digits than its factorization.

143888056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29503 (or 29499 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 43.

The square root of 143888056 is about 11995.3347598139. The cubic root of 143888056 is about 524.0124212816.

The spelling of 143888056 in words is "one hundred forty-three million, eight hundred eighty-eight thousand, fifty-six".

Divisors: 1 2 4 8 13 26 47 52 94 104 188 376 611 1222 2444 4888 29437 58874 117748 235496 382681 765362 1383539 1530724 2767078 3061448 5534156 11068312 17986007 35972014 71944028 143888056