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102006818 = 21311392801
BaseRepresentation
bin1100001010010…
…00000000100010
321002221111001022
412011020000202
5202103204233
614042205442
72346020654
oct605100042
9232844038
10102006818
1152642261
122a1b3882
1318197084
14d7946d4
158e4e398
hex6148022

102006818 has 16 divisors (see below), whose sum is σ = 155342880. Its totient is φ = 50232000.

The previous prime is 102006799. The next prime is 102006857. The reversal of 102006818 is 818600201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35018 + ... + 37818.

It is an arithmetic number, because the mean of its divisors is an integer number (9708930).

Almost surely, 2102006818 is an apocalyptic number.

102006818 is a deficient number, since it is larger than the sum of its proper divisors (53336062).

102006818 is a wasteful number, since it uses less digits than its factorization.

102006818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3073.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 102006818 is about 10099.8424740191. The cubic root of 102006818 is about 467.2432830406.

The spelling of 102006818 in words is "one hundred two million, six thousand, eight hundred eighteen".

Divisors: 1 2 131 139 262 278 2801 5602 18209 36418 366931 389339 733862 778678 51003409 102006818