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102342686 = 21723130873
BaseRepresentation
bin1100001100110…
…10000000011110
321010120112202212
412012122000132
5202144431221
614053320422
72351620115
oct606320036
9233515685
10102342686
1152851636
122a336112
1318283c04
14d840c7c
158eb8b5b
hex619a01e

102342686 has 16 divisors (see below), whose sum is σ = 169612704. Its totient is φ = 46066944.

The previous prime is 102342679. The next prime is 102342697. The reversal of 102342686 is 686243201.

It is a congruent number.

It is an unprimeable number.

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, 64655 + ... + 66218.

It is an arithmetic number, because the mean of its divisors is an integer number (10600794).

Almost surely, 2102342686 is an apocalyptic number.

102342686 is a deficient number, since it is larger than the sum of its proper divisors (67270018).

102342686 is a wasteful number, since it uses less digits than its factorization.

102342686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130915.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 102342686 is about 10116.4561977009. The cubic root of 102342686 is about 467.7555368490.

Adding to 102342686 its reverse (686243201), we get a palindrome (788585887).

The spelling of 102342686 in words is "one hundred two million, three hundred forty-two thousand, six hundred eighty-six".

Divisors: 1 2 17 23 34 46 391 782 130873 261746 2224841 3010079 4449682 6020158 51171343 102342686