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1313400424 = 237223105173
BaseRepresentation
bin100111001001000…
…1110011001101000
310101112101122200011
41032102032121220
510142212303144
6334154421304
744355501520
oct11622163150
93345348604
101313400424
116144201a6
12307a31834
1317c14a51b
14c660c680
157a48aa34
hex4e48e668

1313400424 has 32 divisors (see below), whose sum is σ = 2827077120. Its totient is φ = 560356416.

The previous prime is 1313400419. The next prime is 1313400427. The reversal of 1313400424 is 4240043131.

It is a junction number, because it is equal to n+sod(n) for n = 1313400395 and 1313400404.

It is not an unprimeable number, because it can be changed into a prime (1313400427) 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, 40099 + ... + 65074.

It is an arithmetic number, because the mean of its divisors is an integer number (88346160).

Almost surely, 21313400424 is an apocalyptic number.

1313400424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1313400424 is an abundant number, since it is smaller than the sum of its proper divisors (1513676696).

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

1313400424 is a wasteful number, since it uses less digits than its factorization.

1313400424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105409 (or 105405 counting only the distinct ones).

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

The square root of 1313400424 is about 36240.8667666765. The cubic root of 1313400424 is about 1095.1301038740.

Adding to 1313400424 its reverse (4240043131), we get a palindrome (5553443555).

The spelling of 1313400424 in words is "one billion, three hundred thirteen million, four hundred thousand, four hundred twenty-four".

Divisors: 1 2 4 7 8 14 28 56 223 446 892 1561 1784 3122 6244 12488 105173 210346 420692 736211 841384 1472422 2944844 5889688 23453579 46907158 93814316 164175053 187628632 328350106 656700212 1313400424