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2545454545452 = 22337213371019901
BaseRepresentation
bin100101000010101000111…
…010011111101000101100
3100000100021002210201102000
4211002220322133220230
5313201042330423302
65225210552532300
7351621510433200
oct45025072375054
910010232721360
102545454545452
118a1580805025
123513ab6b1090
1315605c821b90
148b2b4864b00
154632e3d931c
hex250a8e9fa2c

2545454545452 has 576 divisors, whose sum is σ = 8575661162880. Its totient is φ = 646652160000.

The previous prime is 2545454545433. The next prime is 2545454545493.

2545454545452 is a `hidden beast` number, since 2 + 5 + 4 + 5 + 4 + 54 + 545 + 45 + 2 = 666.

2545454545452 is nontrivially palindromic in base 10.

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

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 257085702 + ... + 257095602.

It is an arithmetic number, because the mean of its divisors is an integer number (14888300630).

Almost surely, 22545454545452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2545454545452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4287830581440).

2545454545452 is an abundant number, since it is smaller than the sum of its proper divisors (6030206617428).

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

2545454545452 is a wasteful number, since it uses less digits than its factorization.

2545454545452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10079 (or 10064 counting only the distinct ones).

The product of its digits is 64000000, while the sum is 54.

The spelling of 2545454545452 in words is "two trillion, five hundred forty-five billion, four hundred fifty-four million, five hundred forty-five thousand, four hundred fifty-two".