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65231042 = 257112
BaseRepresentation
bin1111100011010…
…1100011000010
311112202002011112
43320311203002
5113144343132
610250043322
71421311652
oct370654302
9145662145
1065231042
1133904058
1219a19542
131068bc66
148940362
155ad7ab2
hex3e358c2

65231042 has 6 divisors (see below), whose sum is σ = 97863699. Its totient is φ = 32609810.

The previous prime is 65231029. The next prime is 65231051. The reversal of 65231042 is 24013256.

65231042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 32615521 + 32615521 = 5711^2 + 5711^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=5711.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65230999 and 65231017.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 8567 + ... + 14277.

Almost surely, 265231042 is an apocalyptic number.

65231042 is a deficient number, since it is larger than the sum of its proper divisors (32632657).

65231042 is an frugal number, since it uses more digits than its factorization.

65231042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11424 (or 5713 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 65231042 is about 8076.5736547127. The cubic root of 65231042 is about 402.5484004911.

Adding to 65231042 its reverse (24013256), we get a palindrome (89244298).

The spelling of 65231042 in words is "sixty-five million, two hundred thirty-one thousand, forty-two".

Divisors: 1 2 5711 11422 32615521 65231042