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2431411220 = 225731560233
BaseRepresentation
bin1001000011101100…
…0110010000010100
320021110010111011102
42100323012100110
514434420124340
61041133325232
7114152440310
oct22073062024
96243114142
102431411220
111038517267
1257a336818
132c9966084
14190cb8b40
15e36cd215
hex90ec6414

2431411220 has 48 divisors (see below), whose sum is σ = 6023635968. Its totient is φ = 806734080.

The previous prime is 2431411217. The next prime is 2431411267. The reversal of 2431411220 is 221141342.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2431411192 and 2431411201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275777 + ... + 284456.

It is an arithmetic number, because the mean of its divisors is an integer number (125492416).

Almost surely, 22431411220 is an apocalyptic number.

2431411220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2431411220 is an abundant number, since it is smaller than the sum of its proper divisors (3592224748).

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

2431411220 is a wasteful number, since it uses less digits than its factorization.

2431411220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560280 (or 560278 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2431411220 is about 49309.3421168849. The cubic root of 2431411220 is about 1344.6816307217.

Adding to 2431411220 its reverse (221141342), we get a palindrome (2652552562).

The spelling of 2431411220 in words is "two billion, four hundred thirty-one million, four hundred eleven thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 31 35 62 70 124 140 155 217 310 434 620 868 1085 2170 4340 560233 1120466 2240932 2801165 3921631 5602330 7843262 11204660 15686524 17367223 19608155 34734446 39216310 69468892 78432620 86836115 121570561 173672230 243141122 347344460 486282244 607852805 1215705610 2431411220