Search a number
-
+
245132121142143 = 3321099794302871
BaseRepresentation
bin110111101111001001000101…
…000000001111001101111111
31012010221101211222220121221000
4313233021011000033031333
5224112221041003022033
62225204050344541343
7102430132323331644
oct6757110500171577
91163841758817830
10245132121142143
1171119a48892544
12235b02b7481853
13a6a1b240a3501
14447665a941dcb
151d516b0682a13
hexdef24500f37f

245132121142143 has 16 divisors (see below), whose sum is σ = 363158954502400. Its totient is φ = 163421298663480.

The previous prime is 245132121142123. The next prime is 245132121142147. The reversal of 245132121142143 is 341241121231542.

245132121142143 is a `hidden beast` number, since 2 + 4 + 5 + 1 + 3 + 212 + 11 + 421 + 4 + 3 = 666.

It is not a de Polignac number, because 245132121142143 - 221 = 245132119044991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 245132121142098 and 245132121142107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245132121142147) 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, 54817998 + ... + 59120868.

It is an arithmetic number, because the mean of its divisors is an integer number (22697434656400).

Almost surely, 2245132121142143 is an apocalyptic number.

245132121142143 is a deficient number, since it is larger than the sum of its proper divisors (118026833360257).

245132121142143 is a wasteful number, since it uses less digits than its factorization.

245132121142143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6412859 (or 6412853 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

Adding to 245132121142143 its reverse (341241121231542), we get a palindrome (586373242373685).

The spelling of 245132121142143 in words is "two hundred forty-five trillion, one hundred thirty-two billion, one hundred twenty-one million, one hundred forty-two thousand, one hundred forty-three".

Divisors: 1 3 9 27 2109979 4302871 6329937 12908613 18989811 38725839 56969433 116177517 9078967449709 27236902349127 81710707047381 245132121142143