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2420120143 = 7293752711
BaseRepresentation
bin1001000001000000…
…0001101001001111
320020122212211201101
42100100001221033
514424022321033
61040051323531
7113654452600
oct22020015117
96218784641
102420120143
1110321050a1
125765b05a7
132c751196c
1418d5b9da7
15e26ec97d
hex90401a4f

2420120143 has 12 divisors (see below), whose sum is σ = 2818299792. Its totient is φ = 2072135520.

The previous prime is 2420120137. The next prime is 2420120173. The reversal of 2420120143 is 3410210242.

It is not a de Polignac number, because 2420120143 - 213 = 2420111951 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2420120143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2420120113) 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 11 ways as a sum of consecutive naturals, for example, 19558 + ... + 72268.

It is an arithmetic number, because the mean of its divisors is an integer number (234858316).

Almost surely, 22420120143 is an apocalyptic number.

2420120143 is a deficient number, since it is larger than the sum of its proper divisors (398179649).

2420120143 is an equidigital number, since it uses as much as digits as its factorization.

2420120143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53662 (or 53655 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2420120143 is about 49194.7166167262. The cubic root of 2420120143 is about 1342.5969063115.

Adding to 2420120143 its reverse (3410210242), we get a palindrome (5830330385).

Subtracting 2420120143 from its reverse (3410210242), we obtain a palindrome (990090099).

It can be divided in two parts, 24201 and 20143, that added together give a palindrome (44344).

The spelling of 2420120143 in words is "two billion, four hundred twenty million, one hundred twenty thousand, one hundred forty-three".

Divisors: 1 7 49 937 6559 45913 52711 368977 2582839 49390207 345731449 2420120143