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1020011210018 = 22643719291357
BaseRepresentation
bin11101101011111010110…
…01111110010100100010
310121111211100001012222122
432311331121332110202
5113202440332210033
62100330420104242
7133456554142133
oct16657531762442
93544740035878
101020011210018
11363647811199
12145827835082
1375257099a08
1437524009c8a
151b7ed498a98
hexed7d67e522

1020011210018 has 8 divisors (see below), whose sum is σ = 1530074768412. Its totient is φ = 509986287216.

The previous prime is 1020011210011. The next prime is 1020011210047. The reversal of 1020011210018 is 8100121100201.

It can be written as a sum of positive squares in 2 ways, for example, as 1018074946009 + 1936264009 = 1008997^2 + 44003^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1020011209978 and 1020011210005.

It is not an unprimeable number, because it can be changed into a prime (1020011210011) 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, 9592805 + ... + 9698552.

Almost surely, 21020011210018 is an apocalyptic number.

1020011210018 is a deficient number, since it is larger than the sum of its proper divisors (510063558394).

1020011210018 is a wasteful number, since it uses less digits than its factorization.

1020011210018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19317796.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1020011210018 its reverse (8100121100201), we get a palindrome (9120132310219).

The spelling of 1020011210018 in words is "one trillion, twenty billion, eleven million, two hundred ten thousand, eighteen".

Divisors: 1 2 26437 52874 19291357 38582714 510005605009 1020011210018