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143252953 = 2931159347
BaseRepresentation
bin10001000100111…
…01110111011001
3100222120000002221
420202131313121
5243133043303
622114224041
73356426044
oct1042356731
9328500087
10143252953
1173954078
123bb85021
13238a8b7c
141504dc5b
15c89a4bd
hex889ddd9

143252953 has 8 divisors (see below), whose sum is σ = 152974080. Its totient is φ = 133850640.

The previous prime is 143252939. The next prime is 143252981. The reversal of 143252953 is 359252341.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-143252953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143252903) 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, 78775 + ... + 80572.

It is an arithmetic number, because the mean of its divisors is an integer number (19121760).

Almost surely, 2143252953 is an apocalyptic number.

It is an amenable number.

143252953 is a deficient number, since it is larger than the sum of its proper divisors (9721127).

143252953 is a wasteful number, since it uses less digits than its factorization.

143252953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159407.

The product of its digits is 32400, while the sum is 34.

The square root of 143252953 is about 11968.8325662948. The cubic root of 143252953 is about 523.2403101414.

The spelling of 143252953 in words is "one hundred forty-three million, two hundred fifty-two thousand, nine hundred fifty-three".

Divisors: 1 29 31 899 159347 4621063 4939757 143252953