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143406113 = 499287387
BaseRepresentation
bin10001000110000…
…11010000100001
3100222211210012112
420203003100201
5243202443423
622121405105
73360634424
oct1043032041
9328753175
10143406113
1173a49154
1240039795
13239307b6
141508d9bb
15c8caa78
hex88c3421

143406113 has 4 divisors (see below), whose sum is σ = 143694000. Its totient is φ = 143118228.

The previous prime is 143406103. The next prime is 143406139. The reversal of 143406113 is 311604341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 311604341 = 319197651.

It is a cyclic number.

It is not a de Polignac number, because 143406113 - 24 = 143406097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143406103) 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, 143195 + ... + 144192.

It is an arithmetic number, because the mean of its divisors is an integer number (35923500).

Almost surely, 2143406113 is an apocalyptic number.

It is an amenable number.

143406113 is a deficient number, since it is larger than the sum of its proper divisors (287887).

143406113 is an equidigital number, since it uses as much as digits as its factorization.

143406113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287886.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 143406113 is about 11975.2291418578. The cubic root of 143406113 is about 523.4267191952.

The spelling of 143406113 in words is "one hundred forty-three million, four hundred six thousand, one hundred thirteen".

Divisors: 1 499 287387 143406113