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143248892 = 22311155233
BaseRepresentation
bin10001000100111…
…00110111111100
3100222112210112112
420202130313330
5243132431032
622114153152
73356411153
oct1042346774
9328483475
10143248892
1173951016
123bb827b8
13238a7077
141504c59a
15c8991b2
hex889cdfc

143248892 has 12 divisors (see below), whose sum is σ = 258772416. Its totient is φ = 69313920.

The previous prime is 143248891. The next prime is 143248909. The reversal of 143248892 is 298842341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143248891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 577493 + ... + 577740.

It is an arithmetic number, because the mean of its divisors is an integer number (21564368).

Almost surely, 2143248892 is an apocalyptic number.

It is an amenable number.

143248892 is a deficient number, since it is larger than the sum of its proper divisors (115523524).

143248892 is a wasteful number, since it uses less digits than its factorization.

143248892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155268 (or 1155266 counting only the distinct ones).

The product of its digits is 110592, while the sum is 41.

The square root of 143248892 is about 11968.6629161323. The cubic root of 143248892 is about 523.2353657431.

The spelling of 143248892 in words is "one hundred forty-three million, two hundred forty-eight thousand, eight hundred ninety-two".

Divisors: 1 2 4 31 62 124 1155233 2310466 4620932 35812223 71624446 143248892