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2520047620 = 225142388547
BaseRepresentation
bin1001011000110100…
…1110000000000100
320111121220200110001
42112031032000010
520130113010440
61054021211044
7116310023416
oct22615160004
96447820401
102520047620
111083557092
125a3b60a84
1331212b44c
1419c98c9b6
15eb38ab9a
hex9634e004

2520047620 has 24 divisors (see below), whose sum is σ = 5295878784. Its totient is φ = 1007299296.

The previous prime is 2520047611. The next prime is 2520047633. The reversal of 2520047620 is 267400252.

It is an unprimeable number.

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, 15814 + ... + 72733.

It is an arithmetic number, because the mean of its divisors is an integer number (220661616).

Almost surely, 22520047620 is an apocalyptic number.

2520047620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2520047620 is an abundant number, since it is smaller than the sum of its proper divisors (2775831164).

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

2520047620 is a wasteful number, since it uses less digits than its factorization.

2520047620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89979 (or 89977 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 2520047620 is about 50200.0758963570. The cubic root of 2520047620 is about 1360.8269948527.

Adding to 2520047620 its reverse (267400252), we get a palindrome (2787447872).

The spelling of 2520047620 in words is "two billion, five hundred twenty million, forty-seven thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 1423 2846 5692 7115 14230 28460 88547 177094 354188 442735 885470 1770940 126002381 252004762 504009524 630011905 1260023810 2520047620