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2431421244 = 2232747920143
BaseRepresentation
bin1001000011101100…
…1000101100111100
320021110010222220200
42100323020230330
514434420434434
61041133443500
7114152511450
oct22073105474
96243128820
102431421244
11103852384a
1257a340590
132c996a7c5
14190cbc660
15e36d1199
hex90ec8b3c

2431421244 has 72 divisors (see below), whose sum is σ = 7039119360. Its totient is φ = 693207072.

The previous prime is 2431421191. The next prime is 2431421257. The reversal of 2431421244 is 4421241342.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110637 + ... + 130779.

Almost surely, 22431421244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2431421244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3519559680).

2431421244 is an abundant number, since it is smaller than the sum of its proper divisors (4607698116).

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

2431421244 is a wasteful number, since it uses less digits than its factorization.

2431421244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20639 (or 20634 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

The square root of 2431421244 is about 49309.4437608051. The cubic root of 2431421244 is about 1344.6834786293.

Adding to 2431421244 its reverse (4421241342), we get a palindrome (6852662586).

The spelling of 2431421244 in words is "two billion, four hundred thirty-one million, four hundred twenty-one thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 252 479 958 1437 1916 2874 3353 4311 5748 6706 8622 10059 13412 17244 20118 20143 30177 40236 40286 60354 60429 80572 120708 120858 141001 181287 241716 282002 362574 423003 564004 725148 846006 1269009 1692012 2538018 5076036 9648497 19296994 28945491 38593988 57890982 67539479 86836473 115781964 135078958 173672946 202618437 270157916 347345892 405236874 607855311 810473748 1215710622 2431421244