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20121410 = 252398419
BaseRepresentation
bin100110011000…
…0011101000010
31101212021101102
41030300131002
520122341120
61555134402
7333013001
oct114603502
941767342
1020121410
11103a3571
1268a4402
13422677a
14295ac38
151b76d75
hex1330742

20121410 has 16 divisors (see below), whose sum is σ = 36374400. Its totient is φ = 8013936.

The previous prime is 20121401. The next prime is 20121427. The reversal of 20121410 is 1412102.

20121410 = T285 + T286 + ... + T523.

It is a super-2 number, since 2×201214102 = 809742280776200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20121391 and 20121400.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1820 + ... + 6599.

It is an arithmetic number, because the mean of its divisors is an integer number (2273400).

Almost surely, 220121410 is an apocalyptic number.

20121410 is a deficient number, since it is larger than the sum of its proper divisors (16252990).

20121410 is a wasteful number, since it uses less digits than its factorization.

20121410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8665.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 20121410 is about 4485.6894676293. The cubic root of 20121410 is about 271.9899163649.

Adding to 20121410 its reverse (1412102), we get a palindrome (21533512).

The spelling of 20121410 in words is "twenty million, one hundred twenty-one thousand, four hundred ten".

Divisors: 1 2 5 10 239 478 1195 2390 8419 16838 42095 84190 2012141 4024282 10060705 20121410