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102442711 = 714634673
BaseRepresentation
bin1100001101100…
…10011011010111
321010202121222111
412012302123113
5202211131321
614055411451
72352514540
oct606623327
9233677874
10102442711
115290a7a8
122a383b87
13182ba5b7
14d8694c7
158ed85e1
hex61b26d7

102442711 has 4 divisors (see below), whose sum is σ = 117077392. Its totient is φ = 87808032.

The previous prime is 102442687. The next prime is 102442757. The reversal of 102442711 is 117244201.

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

It is a cyclic number.

It is not a de Polignac number, because 102442711 - 25 = 102442679 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 (102442771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7317330 + ... + 7317343.

It is an arithmetic number, because the mean of its divisors is an integer number (29269348).

Almost surely, 2102442711 is an apocalyptic number.

102442711 is a deficient number, since it is larger than the sum of its proper divisors (14634681).

102442711 is an equidigital number, since it uses as much as digits as its factorization.

102442711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14634680.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 102442711 is about 10121.3986681683. The cubic root of 102442711 is about 467.9078747610.

Adding to 102442711 its reverse (117244201), we get a palindrome (219686912).

The spelling of 102442711 in words is "one hundred two million, four hundred forty-two thousand, seven hundred eleven".

Divisors: 1 7 14634673 102442711