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2420513240 = 235431140401
BaseRepresentation
bin1001000001000110…
…0001100111011000
320020200121210221112
42100101201213120
514424122410430
61040103555452
7113661010625
oct22021414730
96220553845
102420513240
111032353472
1257675bb88
132c761b872
1418d67d34c
15e2779195
hex904619d8

2420513240 has 32 divisors (see below), whose sum is σ = 5458829760. Its totient is φ = 965952000.

The previous prime is 2420513237. The next prime is 2420513243. The reversal of 2420513240 is 423150242.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2420513237) and next prime (2420513243).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2420513243) 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, 52961 + ... + 87440.

It is an arithmetic number, because the mean of its divisors is an integer number (170588430).

Almost surely, 22420513240 is an apocalyptic number.

2420513240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2420513240 is an abundant number, since it is smaller than the sum of its proper divisors (3038316520).

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

2420513240 is a wasteful number, since it uses less digits than its factorization.

2420513240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140843 (or 140839 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 2420513240 is about 49198.7117717527. The cubic root of 2420513240 is about 1342.6695944719.

Adding to 2420513240 its reverse (423150242), we get a palindrome (2843663482).

The spelling of 2420513240 in words is "two billion, four hundred twenty million, five hundred thirteen thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 431 862 1724 2155 3448 4310 8620 17240 140401 280802 561604 702005 1123208 1404010 2808020 5616040 60512831 121025662 242051324 302564155 484102648 605128310 1210256620 2420513240