Search a number
-
+
20331322011032 = 23171942118689213
BaseRepresentation
bin1001001111101110000010…
…01110011110110110011000
32122222122200210021112222112
410213313001032132312120
510131102021413323112
6111124025210411452
74165614053446544
oct447670116366630
978878623245875
1020331322011032
11652951326986a
12234441a730b88
13b4630a34b286
14504081218a24
15253ce725aa22
hex127dc139ed98

20331322011032 has 64 divisors (see below), whose sum is σ = 42588980863200. Its totient is φ = 9042588334080.

The previous prime is 20331322010969. The next prime is 20331322011041. The reversal of 20331322011032 is 23011022313302.

It is a junction number, because it is equal to n+sod(n) for n = 20331322010989 and 20331322011007.

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, 8256743 + ... + 10432470.

Almost surely, 220331322011032 is an apocalyptic number.

It is an amenable number.

20331322011032 is an abundant number, since it is smaller than the sum of its proper divisors (22257658852168).

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

20331322011032 is a wasteful number, since it uses less digits than its factorization.

20331322011032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18689676 (or 18689672 counting only the distinct ones).

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

Adding to 20331322011032 its reverse (23011022313302), we get a palindrome (43342344324334).

The spelling of 20331322011032 in words is "twenty trillion, three hundred thirty-one billion, three hundred twenty-two million, eleven thousand, thirty-two".

Divisors: 1 2 4 8 17 19 34 38 68 76 136 152 323 421 646 842 1292 1684 2584 3368 7157 7999 14314 15998 28628 31996 57256 63992 135983 271966 543932 1087864 18689213 37378426 74756852 149513704 317716621 355095047 635433242 710190094 1270866484 1420380188 2541732968 2840760376 6036615799 7868158673 12073231598 15736317346 24146463196 31472634692 48292926392 62945269384 133758697441 149495014787 267517394882 298990029574 535034789764 597980059148 1070069579528 1195960118296 2541415251379 5082830502758 10165661005516 20331322011032