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1818679013028 = 2233418927117029
BaseRepresentation
bin11010011101110001101…
…101110110111010100100
320102212022212102100021000
4122131301231312322210
5214244123311404103
63511253430553300
7245252363355003
oct32356155667244
96385285370230
101818679013028
1164132a987639
1225457bb08830
13102668047437
146404b46cc3a
153249483aaa3
hex1a771b76ea4

1818679013028 has 192 divisors, whose sum is σ = 4902678144000. Its totient is φ = 582602803200.

The previous prime is 1818679013017. The next prime is 1818679013033. The reversal of 1818679013028 is 8203109768181.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 106790418 + ... + 106807446.

It is an arithmetic number, because the mean of its divisors is an integer number (25534782000).

Almost surely, 21818679013028 is an apocalyptic number.

1818679013028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1818679013028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2451339072000).

1818679013028 is an abundant number, since it is smaller than the sum of its proper divisors (3083999130972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1818679013028 is a wasteful number, since it uses less digits than its factorization.

1818679013028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17443 (or 17435 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 54.

The spelling of 1818679013028 in words is "one trillion, eight hundred eighteen billion, six hundred seventy-nine million, thirteen thousand, twenty-eight".