Search a number
-
+
23843434831 = 411474139451
BaseRepresentation
bin10110001101001011…
…011111000101001111
32021112200121222122221
4112031023133011033
5342312404403311
614541543320211
71502601565156
oct261513370517
967480558587
1023843434831
11a125aa7547
124755150067
13232ca3c128
14122292259d
159483b6671
hex58d2df14f

23843434831 has 8 divisors (see below), whose sum is σ = 24427258128. Its totient is φ = 23259720000.

The previous prime is 23843434819. The next prime is 23843434931. The reversal of 23843434831 is 13843434832.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23843434831 is a prime.

It is a super-2 number, since 2×238434348312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23843434801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 584656 + ... + 624106.

It is an arithmetic number, because the mean of its divisors is an integer number (3053407266).

Almost surely, 223843434831 is an apocalyptic number.

23843434831 is a deficient number, since it is larger than the sum of its proper divisors (583823297).

23843434831 is a wasteful number, since it uses less digits than its factorization.

23843434831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54233.

The product of its digits is 663552, while the sum is 43.

Subtracting from 23843434831 its reverse (13843434832), we obtain a palindrome (9999999999).

The spelling of 23843434831 in words is "twenty-three billion, eight hundred forty-three million, four hundred thirty-four thousand, eight hundred thirty-one".

Divisors: 1 41 14741 39451 604381 1617491 581547191 23843434831