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13203134032 = 2411831078447
BaseRepresentation
bin11000100101111011…
…11101011001010000
31021002011000200222011
430102331331121100
5204020000242112
610022044552304
7645120534064
oct142275753120
937064020864
1013203134032
115665909020
122685852694
1313254b565a
148d3725aa4
155241c9aa7
hex312f7d650

13203134032 has 80 divisors (see below), whose sum is σ = 28510175232. Its totient is φ = 5873010560.

The previous prime is 13203134023. The next prime is 13203134039. The reversal of 13203134032 is 23043130231.

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 = 13203133994 and 13203134012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13203134039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1558833 + ... + 1567279.

Almost surely, 213203134032 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 13203134032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14255087616).

13203134032 is an abundant number, since it is smaller than the sum of its proper divisors (15307041200).

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

13203134032 is a wasteful number, since it uses less digits than its factorization.

13203134032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8656 (or 8650 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 13203134032 its reverse (23043130231), we get a palindrome (36246264263).

The spelling of 13203134032 in words is "thirteen billion, two hundred three million, one hundred thirty-four thousand, thirty-two".

Divisors: 1 2 4 8 11 16 22 44 83 88 107 166 176 214 332 428 664 856 913 1177 1328 1712 1826 2354 3652 4708 7304 8447 8881 9416 14608 16894 17762 18832 33788 35524 67576 71048 92917 97691 135152 142096 185834 195382 371668 390764 701101 743336 781528 903829 1402202 1486672 1563056 1807658 2804404 3615316 5608808 7230632 7712111 9942119 11217616 14461264 15424222 19884238 30848444 39768476 61696888 75017807 79536952 123393776 150035614 159073904 300071228 600142456 825195877 1200284912 1650391754 3300783508 6601567016 13203134032