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2512421020 = 225353355867
BaseRepresentation
bin1001010111000000…
…1000000010011100
320111002120012201101
42111300020002130
520121134433040
61053145522444
7116155140424
oct22560100234
96432505641
102512421020
11107a21810a
125a14a3424
1331068ac75
1419b965484
15ea88109a
hex95c0809c

2512421020 has 24 divisors (see below), whose sum is σ = 5291045424. Its totient is φ = 1002118656.

The previous prime is 2512420993. The next prime is 2512421029. The reversal of 2512421020 is 201242152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2512421029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170874 + ... + 184993.

It is an arithmetic number, because the mean of its divisors is an integer number (220460226).

Almost surely, 22512421020 is an apocalyptic number.

2512421020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2512421020 is an abundant number, since it is smaller than the sum of its proper divisors (2778624404).

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

2512421020 is a wasteful number, since it uses less digits than its factorization.

2512421020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356229 (or 356227 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 2512421020 is about 50124.0563003435. The cubic root of 2512421020 is about 1359.4528183716.

Adding to 2512421020 its reverse (201242152), we get a palindrome (2713663172).

The spelling of 2512421020 in words is "two billion, five hundred twelve million, four hundred twenty-one thousand, twenty".

Divisors: 1 2 4 5 10 20 353 706 1412 1765 3530 7060 355867 711734 1423468 1779335 3558670 7117340 125621051 251242102 502484204 628105255 1256210510 2512421020