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143130806 = 2713786433
BaseRepresentation
bin10001000100000…
…00000010110110
3100222022210112222
420202000002312
5243120141211
622111442342
73355406660
oct1042000266
9328283488
10143130806
1173880325
123bb263b2
13238653b0
141501b530
15c8741db
hex88800b6

143130806 has 16 divisors (see below), whose sum is σ = 264241824. Its totient is φ = 56623104.

The previous prime is 143130749. The next prime is 143130809. The reversal of 143130806 is 608031341.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143130809) 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, 393035 + ... + 393398.

It is an arithmetic number, because the mean of its divisors is an integer number (16515114).

Almost surely, 2143130806 is an apocalyptic number.

143130806 is a deficient number, since it is larger than the sum of its proper divisors (121111018).

143130806 is a wasteful number, since it uses less digits than its factorization.

143130806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786455.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 143130806 is about 11963.7287665677. The cubic root of 143130806 is about 523.0915513510.

The spelling of 143130806 in words is "one hundred forty-three million, one hundred thirty thousand, eight hundred six".

Divisors: 1 2 7 13 14 26 91 182 786433 1572866 5505031 10223629 11010062 20447258 71565403 143130806