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1243241032 = 2311413171087
BaseRepresentation
bin100101000011010…
…0101101001001000
310012122101012002011
41022012211221020
510021232203112
6323210545304
742544242265
oct11206455110
93178335064
101243241032
11588860430
122a8438234
1316a7542a7
14bb18826c
157422caa7
hex4a1a5a48

1243241032 has 64 divisors (see below), whose sum is σ = 2615639040. Its totient is φ = 549081600.

The previous prime is 1243241009. The next prime is 1243241047. The reversal of 1243241032 is 2301423421.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1243240994 and 1243241012.

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, 1143193 + ... + 1144279.

It is an arithmetic number, because the mean of its divisors is an integer number (40869360).

Almost surely, 21243241032 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 1243241032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1307819520).

1243241032 is an abundant number, since it is smaller than the sum of its proper divisors (1372398008).

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

1243241032 is a wasteful number, since it uses less digits than its factorization.

1243241032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462 (or 1458 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1243241032 is about 35259.6232538012. The cubic root of 1243241032 is about 1075.2722676507.

Adding to 1243241032 its reverse (2301423421), we get a palindrome (3544664453).

The spelling of 1243241032 in words is "one billion, two hundred forty-three million, two hundred forty-one thousand, thirty-two".

Divisors: 1 2 4 8 11 22 41 44 82 88 164 317 328 451 634 902 1087 1268 1804 2174 2536 3487 3608 4348 6974 8696 11957 12997 13948 23914 25994 27896 44567 47828 51988 89134 95656 103976 142967 178268 285934 344579 356536 490237 571868 689158 980474 1143736 1378316 1960948 2756632 3790369 3921896 7580738 14127739 15161476 28255478 30322952 56510956 113021912 155405129 310810258 621620516 1243241032