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102031000 = 2353102031
BaseRepresentation
bin1100001010011…
…01111010011000
321002222201012221
412011031322120
5202104443000
614042513424
72346151321
oct605157230
9232881187
10102031000
1152659445
122a205874
13181a5096
14d79d448
158e5661a
hex614de98

102031000 has 32 divisors (see below), whose sum is σ = 238754880. Its totient is φ = 40812000.

The previous prime is 102030953. The next prime is 102031037. The reversal of 102031000 is 130201.

It is a super-2 number, since 2×1020310002 = 20820649922000000, which 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 (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50016 + ... + 52015.

It is an arithmetic number, because the mean of its divisors is an integer number (7461090).

Almost surely, 2102031000 is an apocalyptic number.

102031000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102031000 is an abundant number, since it is smaller than the sum of its proper divisors (136723880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102031000 is a wasteful number, since it uses less digits than its factorization.

102031000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102052 (or 102038 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 102031000 is about 10101.0395504621. The cubic root of 102031000 is about 467.2802020903.

Adding to 102031000 its reverse (130201), we get a palindrome (102161201).

The spelling of 102031000 in words is "one hundred two million, thirty-one thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 1000 102031 204062 408124 510155 816248 1020310 2040620 2550775 4081240 5101550 10203100 12753875 20406200 25507750 51015500 102031000