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102023311 = 1313675741
BaseRepresentation
bin1100001010011…
…00000010001111
321002222022200011
412011030002033
5202104221221
614042414051
72346120025
oct605140217
9232868604
10102023311
1152653695
122a201327
13181a1730
14d79a715
158e541e1
hex614c08f

102023311 has 8 divisors (see below), whose sum is σ = 109970784. Its totient is φ = 94090080.

The previous prime is 102023309. The next prime is 102023329. The reversal of 102023311 is 113320201.

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 102023311 - 21 = 102023309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102023291 and 102023300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102023381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14901 + ... + 20641.

It is an arithmetic number, because the mean of its divisors is an integer number (13746348).

Almost surely, 2102023311 is an apocalyptic number.

102023311 is a deficient number, since it is larger than the sum of its proper divisors (7947473).

102023311 is a wasteful number, since it uses less digits than its factorization.

102023311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7121.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 102023311 is about 10100.6589389010. The cubic root of 102023311 is about 467.2684638025.

Adding to 102023311 its reverse (113320201), we get a palindrome (215343512).

The spelling of 102023311 in words is "one hundred two million, twenty-three thousand, three hundred eleven".

Divisors: 1 13 1367 5741 17771 74633 7847947 102023311