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23131332245240 = 23518112417132113
BaseRepresentation
bin1010100001001101011101…
…10101110111011011111000
310000220100000022112002121222
411100212232311313123320
511012440432023321430
6121110215355251212
74605116655653162
oct520465665673370
9100810008462558
1023131332245240
117408a4102446a
122717010449b08
13cba376a0334b
1459d7c3535932
152a1a7439c9e5
hex1509aed776f8

23131332245240 has 64 divisors (see below), whose sum is σ = 52096175408160. Its totient is φ = 9243527864320.

The previous prime is 23131332245239. The next prime is 23131332245261. The reversal of 23131332245240 is 4254223313132.

23131332245240 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 23131332245240.

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, 175021424 + ... + 175153536.

Almost surely, 223131332245240 is an apocalyptic number.

23131332245240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23131332245240 is an abundant number, since it is smaller than the sum of its proper divisors (28964843162920).

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

23131332245240 is a wasteful number, since it uses less digits than its factorization.

23131332245240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136352 (or 136348 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 35.

Adding to 23131332245240 its reverse (4254223313132), we get a palindrome (27385555558372).

The spelling of 23131332245240 in words is "twenty-three trillion, one hundred thirty-one billion, three hundred thirty-two million, two hundred forty-five thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 1811 2417 3622 4834 7244 9055 9668 12085 14488 18110 19336 24170 36220 48340 72440 96680 132113 264226 528452 660565 1056904 1321130 2642260 4377187 5284520 8754374 17508748 21885935 35017496 43771870 87543740 175087480 239256643 319317121 478513286 638634242 957026572 1196283215 1277268484 1596585605 1914053144 2392566430 2554536968 3193171210 4785132860 6386342420 9570265720 12772684840 578283306131 1156566612262 2313133224524 2891416530655 4626266449048 5782833061310 11565666122620 23131332245240