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20013232130132 = 228772135703641
BaseRepresentation
bin1001000110011101100011…
…00101111000100001010100
32121212020122120001100210112
410203032301211320201110
510110344044411131012
6110321541340342152
74133623356203513
oct443166145704124
977766576040715
1020013232130132
11641662288027a
1222b2846b44958
13b223167ac437
144d290777067a
1524a8cb88c122
hex1233b1978854

20013232130132 has 12 divisors (see below), whose sum is σ = 35023202293716. Its totient is φ = 10006602903360.

The previous prime is 20013232130117. The next prime is 20013232130149. The reversal of 20013232130132 is 23103123231002.

It can be written as a sum of positive squares in 2 ways, for example, as 9669637036816 + 10343595093316 = 3109604^2 + 3216146^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20013232130098 and 20013232130107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 657032 + ... + 6360672.

It is an arithmetic number, because the mean of its divisors is an integer number (2918600191143).

Almost surely, 220013232130132 is an apocalyptic number.

It is an amenable number.

20013232130132 is a deficient number, since it is larger than the sum of its proper divisors (15009970163584).

20013232130132 is a wasteful number, since it uses less digits than its factorization.

20013232130132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6580858 (or 6580856 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 20013232130132 its reverse (23103123231002), we get a palindrome (43116355361134).

The spelling of 20013232130132 in words is "twenty trillion, thirteen billion, two hundred thirty-two million, one hundred thirty thousand, one hundred thirty-two".

Divisors: 1 2 4 877213 1754426 3508852 5703641 11407282 22814564 5003308032533 10006616065066 20013232130132