Search a number
-
+
23864177146831 = 712835981444271
BaseRepresentation
bin1010110110100010011111…
…10011010011101111001111
310010111101121112111101001121
411123101033303103233033
511111442313322144311
6122431015053021411
75012062361565250
oct533211763235717
9103441545441047
1023864177146831
11767081695282a
122815054784867
1310414c7a541a8
145c7064a36b27
152b5b66bd7b71
hex15b44fcd3bcf

23864177146831 has 16 divisors (see below), whose sum is σ = 27299227788288. Its totient is φ = 20435602543200.

The previous prime is 23864177146819. The next prime is 23864177146841. The reversal of 23864177146831 is 13864177146832.

It is a cyclic number.

It is not a de Polignac number, because 23864177146831 - 27 = 23864177146703 is a prime.

It is a super-2 number, since 2×238641771468312 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23864177146831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23864177146841) 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, 53493226 + ... + 53937496.

It is an arithmetic number, because the mean of its divisors is an integer number (1706201736768).

Almost surely, 223864177146831 is an apocalyptic number.

23864177146831 is a deficient number, since it is larger than the sum of its proper divisors (3435050641457).

23864177146831 is a wasteful number, since it uses less digits than its factorization.

23864177146831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451542.

The product of its digits is 32514048, while the sum is 61.

Subtracting from 23864177146831 its reverse (13864177146832), we obtain a palindrome (9999999999999).

The spelling of 23864177146831 in words is "twenty-three trillion, eight hundred sixty-four billion, one hundred seventy-seven million, one hundred forty-six thousand, eight hundred thirty-one".

Divisors: 1 7 1283 5981 8981 41867 444271 3109897 7673623 53715361 569999693 2657184851 3989997851 18600293957 3409168163833 23864177146831