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13423023140 = 2253317432729
BaseRepresentation
bin11001000000001001…
…10001010000100100
31021122110210020010012
430200010301100210
5204442243220030
610055541545352
7653430546152
oct144004612044
937573706105
1013423023140
115768a45a5a
122727415258
13135bc14757
14914a043d2
15538662095
hex320131424

13423023140 has 48 divisors (see below), whose sum is σ = 28321937280. Its totient is φ = 5343824640.

The previous prime is 13423023137. The next prime is 13423023151. The reversal of 13423023140 is 4132032431.

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, 4917296 + ... + 4920024.

It is an arithmetic number, because the mean of its divisors is an integer number (590040360).

Almost surely, 213423023140 is an apocalyptic number.

13423023140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13423023140 is an abundant number, since it is smaller than the sum of its proper divisors (14898914140).

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

13423023140 is a wasteful number, since it uses less digits than its factorization.

13423023140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3812 (or 3810 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 13423023140 its reverse (4132032431), we get a palindrome (17555055571).

The spelling of 13423023140 in words is "thirteen billion, four hundred twenty-three million, twenty-three thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 331 662 743 1324 1486 1655 2729 2972 3310 3715 5458 6620 7430 10916 13645 14860 27290 54580 245933 491866 903299 983732 1229665 1806598 2027647 2459330 3613196 4055294 4516495 4918660 8110588 9032990 10138235 18065980 20276470 40552940 671151157 1342302314 2684604628 3355755785 6711511570 13423023140