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2855109289590 = 2325173498396373
BaseRepresentation
bin101001100011000001110…
…001100110011001110110
3101002221112110211120021100
4221203001301212121312
5333234230434231330
610023341420430530
7413163161352615
oct51430161463166
911087473746240
102855109289590
11a00932841508
123a140a3a8446
1317930a95622c
149c28bd3587c
154e4044a8060
hex298c1c66676

2855109289590 has 192 divisors, whose sum is σ = 7893102672000. Its totient is φ = 713559601152.

The previous prime is 2855109289589. The next prime is 2855109289723. The reversal of 2855109289590 is 959829015582.

2855109289590 is a `hidden beast` number, since 2 + 8 + 5 + 5 + 10 + 9 + 28 + 9 + 590 = 666.

It is a super-2 number, since 2×28551092895902 (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 447997644 + ... + 448004016.

It is an arithmetic number, because the mean of its divisors is an integer number (41109909750).

Almost surely, 22855109289590 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2855109289590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3946551336000).

2855109289590 is an abundant number, since it is smaller than the sum of its proper divisors (5037993382410).

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

2855109289590 is a wasteful number, since it uses less digits than its factorization.

2855109289590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7591 (or 7588 counting only the distinct ones).

The product of its (nonzero) digits is 23328000, while the sum is 63.

The spelling of 2855109289590 in words is "two trillion, eight hundred fifty-five billion, one hundred nine million, two hundred eighty-nine thousand, five hundred ninety".