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18003014143211 = 1923193270778853
BaseRepresentation
bin1000001011111101001110…
…10000110100110011101011
32100202001221000020222212102
410011332213100310303223
54324430133110040321
6102142245344404015
73535450321223216
oct405764720646353
970661830228772
1018003014143211
1158110431676a9
12202913101660b
13a078a5346576
144634c9c1677d
152134767e2c0b
hex105fa7434ceb

18003014143211 has 32 divisors (see below), whose sum is σ = 19884531171840. Its totient is φ = 16223214864384.

The previous prime is 18003014143181. The next prime is 18003014143243. The reversal of 18003014143211 is 11234141030081.

It is a cyclic number.

It is not a de Polignac number, because 18003014143211 - 218 = 18003013881067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18003014143271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 228271661 + ... + 228350513.

It is an arithmetic number, because the mean of its divisors is an integer number (621391599120).

Almost surely, 218003014143211 is an apocalyptic number.

18003014143211 is a deficient number, since it is larger than the sum of its proper divisors (1881517028629).

18003014143211 is a wasteful number, since it uses less digits than its factorization.

18003014143211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81795.

The product of its (nonzero) digits is 2304, while the sum is 29.

Adding to 18003014143211 its reverse (11234141030081), we get a palindrome (29237155173292).

The spelling of 18003014143211 in words is "eighteen trillion, three billion, fourteen million, one hundred forty-three thousand, two hundred eleven".

Divisors: 1 19 23 193 437 2707 3667 4439 51433 62261 78853 84341 522451 1182959 1498207 1813619 9926569 12016373 15218629 34458761 213455071 228311087 289153951 350028467 4055646349 4909466633 6650540873 41196828703 93279866027 782739745357 947527060169 18003014143211