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2652813220 = 225314278731
BaseRepresentation
bin1001111000011110…
…1011011110100100
320211212201212121111
42132013223132210
520413110010340
61115122554404
7122511353221
oct23607533644
96755655544
102652813220
111141497922
12620508a04
133337a4985
141b246c948
15107d63aea
hex9e1eb7a4

2652813220 has 24 divisors (see below), whose sum is σ = 5750615808. Its totient is φ = 1026895200.

The previous prime is 2652813217. The next prime is 2652813221. The reversal of 2652813220 is 223182562.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (2652813221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2138746 + ... + 2139985.

It is an arithmetic number, because the mean of its divisors is an integer number (239608992).

Almost surely, 22652813220 is an apocalyptic number.

2652813220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2652813220 is an abundant number, since it is smaller than the sum of its proper divisors (3097802588).

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

2652813220 is a wasteful number, since it uses less digits than its factorization.

2652813220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4278771 (or 4278769 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 2652813220 is about 51505.4678650723. The cubic root of 2652813220 is about 1384.3170174086.

Adding to 2652813220 its reverse (223182562), we get a palindrome (2875995782).

The spelling of 2652813220 in words is "two billion, six hundred fifty-two million, eight hundred thirteen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 4278731 8557462 17114924 21393655 42787310 85574620 132640661 265281322 530562644 663203305 1326406610 2652813220