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1313211424 = 25723092539
BaseRepresentation
bin100111001000110…
…0000010000100000
310101112001001102011
41032101200100200
510142140231144
6334150402304
744354053510
oct11621402040
93345031364
101313211424
116143011a8
12307960394
1317c0b24a5
14c659d840
157a44ea34
hex4e460420

1313211424 has 48 divisors (see below), whose sum is σ = 2957169600. Its totient is φ = 562339584.

The previous prime is 1313211421. The next prime is 1313211469. The reversal of 1313211424 is 4241123131.

It is a junction number, because it is equal to n+sod(n) for n = 1313211395 and 1313211404.

It is not an unprimeable number, because it can be changed into a prime (1313211421) 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, 515947 + ... + 518485.

It is an arithmetic number, because the mean of its divisors is an integer number (61607700).

Almost surely, 21313211424 is an apocalyptic number.

1313211424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1313211424 is an abundant number, since it is smaller than the sum of its proper divisors (1643958176).

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

1313211424 is a wasteful number, since it uses less digits than its factorization.

1313211424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4865 (or 4857 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 1313211424 is about 36238.2591193341. The cubic root of 1313211424 is about 1095.0775711468.

Adding to 1313211424 its reverse (4241123131), we get a palindrome (5554334555).

The spelling of 1313211424 in words is "one billion, three hundred thirteen million, two hundred eleven thousand, four hundred twenty-four".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 2309 2539 4618 5078 9236 10156 16163 17773 18472 20312 32326 35546 36944 40624 64652 71092 73888 81248 129304 142184 258608 284368 517216 568736 5862551 11725102 23450204 41037857 46900408 82075714 93800816 164151428 187601632 328302856 656605712 1313211424