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2420245477 = 1317531271627
BaseRepresentation
bin1001000001000010…
…0000001111100101
320020200010012122101
42100100200033211
514424040323402
61040054132101
7113655514156
oct22020401745
96220105571
102420245477
111032190281
12576651031
132c7556a20
1418d60d92d
15e2724b87
hex904203e5

2420245477 has 32 divisors (see below), whose sum is σ = 2835689472. Its totient is φ = 2045481984.

The previous prime is 2420245469. The next prime is 2420245481. The reversal of 2420245477 is 7745420242.

It is not a de Polignac number, because 2420245477 - 23 = 2420245469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2420245427) 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 31 ways as a sum of consecutive naturals, for example, 1486738 + ... + 1488364.

It is an arithmetic number, because the mean of its divisors is an integer number (88615296).

Almost surely, 22420245477 is an apocalyptic number.

It is an amenable number.

2420245477 is a deficient number, since it is larger than the sum of its proper divisors (415443995).

2420245477 is a wasteful number, since it uses less digits than its factorization.

2420245477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837.

The product of its (nonzero) digits is 125440, while the sum is 37.

The square root of 2420245477 is about 49195.9904565403. The cubic root of 2420245477 is about 1342.6200828655.

The spelling of 2420245477 in words is "two billion, four hundred twenty million, two hundred forty-five thousand, four hundred seventy-seven".

Divisors: 1 13 17 53 127 221 689 901 1627 1651 2159 6731 11713 21151 27659 28067 86231 87503 114427 206629 359567 1121003 1465927 1487551 2686177 3512693 10951337 19057051 45665009 142367381 186172729 2420245477