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23212424240145 = 3257193878433457
BaseRepresentation
bin1010100011100100100000…
…10011010001110000010001
310001012002022202102021000200
411101302100103101300101
511020303021101141040
6121211350202205413
74614020340360330
oct521622023216021
9101162282367020
1023212424240145
11743a374378478
12272a881ab3869
13cc4bcb14529a
145a36b7327d17
152a3c1d670630
hex151c904d1c11

23212424240145 has 48 divisors (see below), whose sum is σ = 48402849555840. Its totient is φ = 10052899517952.

The previous prime is 23212424240143. The next prime is 23212424240149. The reversal of 23212424240145 is 54104242421232.

23212424240145 is a `hidden beast` number, since 2 + 3 + 2 + 1 + 2 + 4 + 242 + 401 + 4 + 5 = 666.

It is not a de Polignac number, because 23212424240145 - 21 = 23212424240143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23212424240143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1939210744 + ... + 1939222713.

It is an arithmetic number, because the mean of its divisors is an integer number (1008392699080).

Almost surely, 223212424240145 is an apocalyptic number.

It is an amenable number.

23212424240145 is an abundant number, since it is smaller than the sum of its proper divisors (25190425315695).

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

23212424240145 is a wasteful number, since it uses less digits than its factorization.

23212424240145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3878433494 (or 3878433491 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 36.

Adding to 23212424240145 its reverse (54104242421232), we get a palindrome (77316666661377).

The spelling of 23212424240145 in words is "twenty-three trillion, two hundred twelve billion, four hundred twenty-four million, two hundred forty thousand, one hundred forty-five".

Divisors: 1 3 5 7 9 15 19 21 35 45 57 63 95 105 133 171 285 315 399 665 855 1197 1995 5985 3878433457 11635300371 19392167285 27149034199 34905901113 58176501855 73690235683 81447102597 135745170995 174529505565 221070707049 244341307791 368451178415 407235512985 515831649781 663212121147 1105353535245 1221706538955 1547494949343 2579158248905 3316060605735 4642484848029 7737474746715 23212424240145