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105423210686 = 259221890083
BaseRepresentation
bin110001000101110110…
…1101000100010111110
3101002010010100222201202
41202023231220202332
53211401320220221
6120233013135502
710421325335243
oct1421355504276
9332103328652
10105423210686
1140789721602
121852202a592
139c31248551
1451614095ca
152b203dbd0b
hex188bb688be

105423210686 has 8 divisors (see below), whose sum is σ = 158137663944. Its totient is φ = 52710656040.

The previous prime is 105423210649. The next prime is 105423210749. The reversal of 105423210686 is 686012324501.

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

It is a super-2 number, since 2×1054232106862 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326600 + ... + 563483.

It is an arithmetic number, because the mean of its divisors is an integer number (19767207993).

Almost surely, 2105423210686 is an apocalyptic number.

105423210686 is a deficient number, since it is larger than the sum of its proper divisors (52714453258).

105423210686 is an equidigital number, since it uses as much as digits as its factorization.

105423210686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949306.

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 105423210686 in words is "one hundred five billion, four hundred twenty-three million, two hundred ten thousand, six hundred eighty-six".

Divisors: 1 2 59221 118442 890083 1780166 52711605343 105423210686