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30841000 = 235330841
BaseRepresentation
bin111010110100…
…1100010101000
32011000212220021
41311221202220
530343403000
63021010224
7523100311
oct165514250
964025807
1030841000
1116455333
12a3b3974
13650aa18
14414b608
152a9311a
hex1d698a8

30841000 has 32 divisors (see below), whose sum is σ = 72170280. Its totient is φ = 12336000.

The previous prime is 30840991. The next prime is 30841003. The reversal of 30841000 is 14803.

It can be written as a sum of positive squares in 4 ways, for example, as 13883076 + 16957924 = 3726^2 + 4118^2 .

It is not an unprimeable number, because it can be changed into a prime (30841003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14421 + ... + 16420.

Almost surely, 230841000 is an apocalyptic number.

It is an amenable number.

30841000 is an abundant number, since it is smaller than the sum of its proper divisors (41329280).

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

30841000 is a wasteful number, since it uses less digits than its factorization.

30841000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30862 (or 30848 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 30841000 is about 5553.4673853368. The cubic root of 30841000 is about 313.6000696324.

Adding to 30841000 its reverse (14803), we get a palindrome (30855803).

The spelling of 30841000 in words is "thirty million, eight hundred forty-one thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 1000 30841 61682 123364 154205 246728 308410 616820 771025 1233640 1542050 3084100 3855125 6168200 7710250 15420500 30841000