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145971316286 = 272985658143
BaseRepresentation
bin1000011111110010010…
…0011000011000111110
3111221202222210011202122
42013330210120120332
54342422124110121
6151020331522542
713355206500455
oct2077444303076
9457688704678
10145971316286
11569a7003484
12243595b9452
13109c3a26c43
1470ca6d1b9c
153be50905ab
hex21fc91863e

145971316286 has 4 divisors (see below), whose sum is σ = 218956974432. Its totient is φ = 72985658142.

The previous prime is 145971316243. The next prime is 145971316303. The reversal of 145971316286 is 682613179541.

145971316286 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 682613179541 = 1496945601789.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36492829070 + ... + 36492829073.

It is an arithmetic number, because the mean of its divisors is an integer number (54739243608).

Almost surely, 2145971316286 is an apocalyptic number.

145971316286 is a deficient number, since it is larger than the sum of its proper divisors (72985658146).

145971316286 is an equidigital number, since it uses as much as digits as its factorization.

145971316286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72985658145.

The product of its digits is 2177280, while the sum is 53.

The spelling of 145971316286 in words is "one hundred forty-five billion, nine hundred seventy-one million, three hundred sixteen thousand, two hundred eighty-six".

Divisors: 1 2 72985658143 145971316286