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7001020420 = 225372793923
BaseRepresentation
bin1101000010100101…
…10001100000000100
3200001220122200112121
412201102301200010
5103314230123140
63114412055324
7335330456152
oct64122614004
920056580477
107001020420
112a72991299
121434764544
138775a2544
144a5b443d2
152ae96b64a
hex1a14b1804

7001020420 has 24 divisors (see below), whose sum is σ = 14706244224. Its totient is φ = 2799626976.

The previous prime is 7001020409. The next prime is 7001020463. The reversal of 7001020420 is 240201007.

It is a junction number, because it is equal to n+sod(n) for n = 7001020394 and 7001020403.

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, 27579 + ... + 121501.

It is an arithmetic number, because the mean of its divisors is an integer number (612760176).

Almost surely, 27001020420 is an apocalyptic number.

It is an amenable number.

7001020420 is an abundant number, since it is smaller than the sum of its proper divisors (7705223804).

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

7001020420 is a wasteful number, since it uses less digits than its factorization.

7001020420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97659 (or 97657 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 7001020420 is about 83672.1006070721. The cubic root of 7001020420 is about 1913.0241303150.

Adding to 7001020420 its reverse (240201007), we get a palindrome (7241221427).

The spelling of 7001020420 in words is "seven billion, one million, twenty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 3727 7454 14908 18635 37270 74540 93923 187846 375692 469615 939230 1878460 350051021 700102042 1400204084 1750255105 3500510210 7001020420