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2545205013120 = 273571131836691
BaseRepresentation
bin100101000010011010000…
…010100110101010000000
3100000022121201021011101210
4211002122002212222000
5313200034440404440
65225130120330120
7351612360436530
oct45023202465200
910008551234353
102545205013120
118a1462970760
12351340013940
1315601cc14303
148b28d66b4c0
1546317548a80
hex2509a0a6a80

2545205013120 has 1024 divisors, whose sum is σ = 10568366161920. Its totient is φ = 505571328000.

The previous prime is 2545205013119. The next prime is 2545205013157. The reversal of 2545205013120 is 213105025452.

It is a super-2 number, since 2×25452050131202 (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 380388975 + ... + 380395665.

It is an arithmetic number, because the mean of its divisors is an integer number (10320670080).

Almost surely, 22545205013120 is an apocalyptic number.

2545205013120 is a gapful number since it is divisible by the number (20) 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 2545205013120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5284183080960).

2545205013120 is an abundant number, since it is smaller than the sum of its proper divisors (8023161148800).

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

2545205013120 is a wasteful number, since it uses less digits than its factorization.

2545205013120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6845 (or 6833 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 2545205013120 in words is "two trillion, five hundred forty-five billion, two hundred five million, thirteen thousand, one hundred twenty".