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13232112420 = 22353711352747
BaseRepresentation
bin11000101001011001…
…00000001100100100
31021011011112221211210
430110230200030210
5204044410044140
610025002031420
7645622046142
oct142454401444
937134487753
1013232112420
1156802009aa
1226934a8570
13132b4c0627
148d750a592
15526a00d80
hex314b20324

13232112420 has 96 divisors (see below), whose sum is σ = 38388728448. Its totient is φ = 3402749952.

The previous prime is 13232112419. The next prime is 13232112437. The reversal of 13232112420 is 2421123231.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 224487 + ... + 277233.

It is an arithmetic number, because the mean of its divisors is an integer number (399882588).

Almost surely, 213232112420 is an apocalyptic number.

13232112420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13232112420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19194364224).

13232112420 is an abundant number, since it is smaller than the sum of its proper divisors (25156616028).

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

13232112420 is a wasteful number, since it uses less digits than its factorization.

13232112420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52909 (or 52907 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 13232112420 its reverse (2421123231), we get a palindrome (15653235651).

The spelling of 13232112420 in words is "thirteen billion, two hundred thirty-two million, one hundred twelve thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 37 60 74 111 113 148 185 222 226 339 370 444 452 555 565 678 740 1110 1130 1356 1695 2220 2260 3390 4181 6780 8362 12543 16724 20905 25086 41810 50172 52747 62715 83620 105494 125430 158241 210988 250860 263735 316482 527470 632964 791205 1054940 1582410 1951639 3164820 3903278 5854917 5960411 7806556 9758195 11709834 11920822 17881233 19516390 23419668 23841644 29274585 29802055 35762466 39032780 58549170 59604110 71524932 89406165 117098340 119208220 178812330 220535207 357624660 441070414 661605621 882140828 1102676035 1323211242 2205352070 2646422484 3308028105 4410704140 6616056210 13232112420