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1022142578688 = 21733711331
BaseRepresentation
bin11101101111111000111…
…00100000000000000000
310121201022212120222011000
432313330130200000000
5113221322000004223
62101322114452000
7133563434365020
oct16677434400000
93551285528130
101022142578688
11364540925000
12146121594000
137550681b7ca
14376870dda80
151b8c565a543
hexedfc720000

1022142578688 has 1152 divisors, whose sum is σ = 3929880084480. Its totient is φ = 256927334400.

The previous prime is 1022142578669. The next prime is 1022142578729. The reversal of 1022142578688 is 8868752412201.

1022142578688 is a `hidden beast` number, since 1 + 0 + 2 + 2 + 1 + 4 + 2 + 578 + 68 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (1152).

It is a super-4 number, since 4×10221425786884 (a number of 49 digits) contains 4444 as substring.

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

It is a congruent number.

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, 32972341233 + ... + 32972341263.

It is an arithmetic number, because the mean of its divisors is an integer number (3411354240).

Almost surely, 21022142578688 is an apocalyptic number.

1022142578688 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 1022142578688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1964940042240).

1022142578688 is an abundant number, since it is smaller than the sum of its proper divisors (2907737505792).

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

1022142578688 is an frugal number, since it uses more digits than its factorization.

1022142578688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 3440640, while the sum is 54.

The spelling of 1022142578688 in words is "one trillion, twenty-two billion, one hundred forty-two million, five hundred seventy-eight thousand, six hundred eighty-eight".