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325123478420 = 225133301378817
BaseRepresentation
bin1001011101100101101…
…11101001001110010100
31011002012102011222002212
410232302313221032110
520311323102302140
6405205404252552
732326601653166
oct4566267511624
91132172158085
10325123478420
1111597a800504
1253017241158
1324874b09380
1411a43a6c936
1586cd122765
hex4bb2de9394

325123478420 has 48 divisors (see below), whose sum is σ = 735503937168. Its totient is φ = 120008908800.

The previous prime is 325123478419. The next prime is 325123478447. The reversal of 325123478420 is 24874321523.

It can be written as a sum of positive squares in 8 ways, for example, as 136199378704 + 188924099716 = 369052^2 + 434654^2 .

It is a congruent number.

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, 668852 + ... + 1047668.

It is an arithmetic number, because the mean of its divisors is an integer number (15322998691).

Almost surely, 2325123478420 is an apocalyptic number.

It is an amenable number.

325123478420 is an abundant number, since it is smaller than the sum of its proper divisors (410380458748).

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

325123478420 is a wasteful number, since it uses less digits than its factorization.

325123478420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382140 (or 382138 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 41.

Adding to 325123478420 its reverse (24874321523), we get a palindrome (349997799943).

The spelling of 325123478420 in words is "three hundred twenty-five billion, one hundred twenty-three million, four hundred seventy-eight thousand, four hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 3301 6602 13204 16505 33010 42913 66020 85826 171652 214565 378817 429130 757634 858260 1515268 1894085 3788170 4924621 7576340 9849242 19698484 24623105 49246210 98492420 1250474917 2500949834 5001899668 6252374585 12504749170 16256173921 25009498340 32512347842 65024695684 81280869605 162561739210 325123478420