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159139557143 = 722734222449
BaseRepresentation
bin1001010000110101110…
…1001110111100010111
3120012202201011010021222
42110031131032330113
510101404211312033
6201035133000555
714332424626310
oct2241535167427
9505681133258
10159139557143
1161544149766
1226a1362315b
1312011c13338
1479b9533607
154216176598
hex250d74ef17

159139557143 has 4 divisors (see below), whose sum is σ = 181873779600. Its totient is φ = 136405334688.

The previous prime is 159139557091. The next prime is 159139557179. The reversal of 159139557143 is 341755931951.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341755931951 = 748822275993.

It is not a de Polignac number, because 159139557143 - 212 = 159139553047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159139557043) 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, 11367111218 + ... + 11367111231.

It is an arithmetic number, because the mean of its divisors is an integer number (45468444900).

Almost surely, 2159139557143 is an apocalyptic number.

159139557143 is a deficient number, since it is larger than the sum of its proper divisors (22734222457).

159139557143 is an equidigital number, since it uses as much as digits as its factorization.

159139557143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22734222456.

The product of its digits is 2551500, while the sum is 53.

The spelling of 159139557143 in words is "one hundred fifty-nine billion, one hundred thirty-nine million, five hundred fifty-seven thousand, one hundred forty-three".

Divisors: 1 7 22734222449 159139557143