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32243144231 = 171896655543
BaseRepresentation
bin11110000001110101…
…110101011000100111
310002020002011102210002
4132001311311120213
51012013221103411
622451242251515
72221005126644
oct360165653047
9102202142702
1032243144231
1112746461541
1262ba1b6b9b
13306b02148c
1417bc316dcb
15c8aa1933b
hex781d75627

32243144231 has 4 divisors (see below), whose sum is σ = 34139799792. Its totient is φ = 30346488672.

The previous prime is 32243144201. The next prime is 32243144287. The reversal of 32243144231 is 13244134223.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-32243144231 is a prime.

It is a super-2 number, since 2×322431442312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32243144194 and 32243144203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32243144201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 948327755 + ... + 948327788.

It is an arithmetic number, because the mean of its divisors is an integer number (8534949948).

Almost surely, 232243144231 is an apocalyptic number.

32243144231 is a deficient number, since it is larger than the sum of its proper divisors (1896655561).

32243144231 is a wasteful number, since it uses less digits than its factorization.

32243144231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1896655560.

The product of its digits is 13824, while the sum is 29.

Adding to 32243144231 its reverse (13244134223), we get a palindrome (45487278454).

The spelling of 32243144231 in words is "thirty-two billion, two hundred forty-three million, one hundred forty-four thousand, two hundred thirty-one".

Divisors: 1 17 1896655543 32243144231