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31232144023 = 1471169312541
BaseRepresentation
bin11101000101100101…
…001011001010010111
32222121121210022012221
4131011211023022113
51002430412102043
622203045123211
72153650562323
oct350545131227
988547708187
1031232144023
1112277805083
1260776b9507
132c397323c2
141723d44983
15c2bdb38ed
hex74594b297

31232144023 has 8 divisors (see below), whose sum is σ = 31274329856. Its totient is φ = 31189989600.

The previous prime is 31232144017. The next prime is 31232144057. The reversal of 31232144023 is 32044123213.

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

It is a cyclic number.

It is not a de Polignac number, because 31232144023 - 25 = 31232143991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31232144093) 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, 2484133 + ... + 2496673.

It is an arithmetic number, because the mean of its divisors is an integer number (3909291232).

Almost surely, 231232144023 is an apocalyptic number.

31232144023 is a deficient number, since it is larger than the sum of its proper divisors (42185833).

31232144023 is a wasteful number, since it uses less digits than its factorization.

31232144023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15705.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 31232144023 its reverse (32044123213), we get a palindrome (63276267236).

The spelling of 31232144023 in words is "thirty-one billion, two hundred thirty-two million, one hundred forty-four thousand, twenty-three".

Divisors: 1 1471 1693 12541 2490403 18447811 21231913 31232144023