Search a number
-
+
32242120431 = 331701949393
BaseRepresentation
bin11110000001110001…
…111011011011101111
310002020000020102101120
4132001301323123233
51012012440323211
622451204312023
72220663334053
oct360161733357
9102200212346
1032242120431
1112745922324
1262b99a2613
13306aa53491
1417bc12bc63
15c8a8b5d06
hex781c7b6ef

32242120431 has 16 divisors (see below), whose sum is σ = 44383472640. Its totient is φ = 20797983360.

The previous prime is 32242120349. The next prime is 32242120447. The reversal of 32242120431 is 13402124223.

It is a happy number.

It is not a de Polignac number, because 32242120431 - 27 = 32242120303 is a prime.

It is a super-2 number, since 2×322421204312 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32242120481) 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, 628071 + ... + 677463.

It is an arithmetic number, because the mean of its divisors is an integer number (2773967040).

Almost surely, 232242120431 is an apocalyptic number.

32242120431 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

32242120431 is a deficient number, since it is larger than the sum of its proper divisors (12141352209).

32242120431 is a wasteful number, since it uses less digits than its factorization.

32242120431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56446.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 32242120431 its reverse (13402124223), we get a palindrome (45644244654).

The spelling of 32242120431 in words is "thirty-two billion, two hundred forty-two million, one hundred twenty thousand, four hundred thirty-one".

Divisors: 1 3 31 93 7019 21057 49393 148179 217589 652767 1531183 4593549 346689467 1040068401 10747373477 32242120431