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10031000 = 235371433
BaseRepresentation
bin100110010000…
…111110011000
3200212121221112
4212100332120
510031443000
6554555452
7151155620
oct46207630
920777845
1010031000
115731491
123438b88
132102a05
141491880
15d32235
hex990f98

10031000 has 64 divisors (see below), whose sum is σ = 26844480. Its totient is φ = 3436800.

The previous prime is 10030991. The next prime is 10031027. The reversal of 10031000 is 13001.

It is a super-2 number, since 2×100310002 = 201241922000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (5).

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 15 ways as a sum of consecutive naturals, for example, 6284 + ... + 7716.

It is an arithmetic number, because the mean of its divisors is an integer number (419445).

Almost surely, 210031000 is an apocalyptic number.

10031000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10031000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13422240).

10031000 is an abundant number, since it is smaller than the sum of its proper divisors (16813480).

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

10031000 is a wasteful number, since it uses less digits than its factorization.

10031000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461 (or 1447 counting only the distinct ones).

The product of its (nonzero) digits is 3, while the sum is 5.

The square root of 10031000 is about 3167.1753977322. The cubic root of 10031000 is about 215.6658642708.

Adding to 10031000 its reverse (13001), we get a palindrome (10044001).

The spelling of 10031000 in words is "ten million, thirty-one thousand".

Divisors: 1 2 4 5 7 8 10 14 20 25 28 35 40 50 56 70 100 125 140 175 200 250 280 350 500 700 875 1000 1400 1433 1750 2866 3500 5732 7000 7165 10031 11464 14330 20062 28660 35825 40124 50155 57320 71650 80248 100310 143300 179125 200620 250775 286600 358250 401240 501550 716500 1003100 1253875 1433000 2006200 2507750 5015500 10031000