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143131470 = 2354771049
BaseRepresentation
bin10001000100000…
…00001101001110
3100222022211110120
420202000031032
5243120201340
622111445410
73355411626
oct1042001516
9328284416
10143131470
1173880879
123bb26866
13238657a1
141501b886
15c8744d0
hex888034e

143131470 has 16 divisors (see below), whose sum is σ = 343515600. Its totient is φ = 38168384.

The previous prime is 143131459. The next prime is 143131487. The reversal of 143131470 is 74131341.

It is a self number, because there is not a number n which added to its sum of digits gives 143131470.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2385495 + ... + 2385554.

It is an arithmetic number, because the mean of its divisors is an integer number (21469725).

Almost surely, 2143131470 is an apocalyptic number.

143131470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

143131470 is an abundant number, since it is smaller than the sum of its proper divisors (200384130).

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

143131470 is a wasteful number, since it uses less digits than its factorization.

143131470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4771059.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 143131470 is about 11963.7565170811. The cubic root of 143131470 is about 523.0923602433.

The spelling of 143131470 in words is "one hundred forty-three million, one hundred thirty-one thousand, four hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 4771049 9542098 14313147 23855245 28626294 47710490 71565735 143131470