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1020412225 = 52752311149
BaseRepresentation
bin111100110100100…
…100000101000001
32122010002022102101
4330310210011001
54042211142400
6245130550401
734200234520
oct7464440501
92563068371
101020412225
11483aa5898
12245898401
13133536121
14997424b7
155e8b456a
hex3cd24141

1020412225 has 24 divisors (see below), whose sum is σ = 1448964800. Its totient is φ = 698310720.

The previous prime is 1020412219. The next prime is 1020412229. The reversal of 1020412225 is 5222140201.

It is not a de Polignac number, because 1020412225 - 29 = 1020411713 is a prime.

It is a super-2 number, since 2×10204122252 = 2082482217858901250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1020412229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85951 + ... + 97099.

Almost surely, 21020412225 is an apocalyptic number.

It is an amenable number.

1020412225 is a deficient number, since it is larger than the sum of its proper divisors (428552575).

1020412225 is a wasteful number, since it uses less digits than its factorization.

1020412225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11689 (or 11684 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 1020412225 is about 31943.8918261379. The cubic root of 1020412225 is about 1006.7582975205.

Adding to 1020412225 its reverse (5222140201), we get a palindrome (6242552426).

The spelling of 1020412225 in words is "one billion, twenty million, four hundred twelve thousand, two hundred twenty-five".

Divisors: 1 5 7 25 35 175 523 2615 3661 11149 13075 18305 55745 78043 91525 278725 390215 1951075 5830927 29154635 40816489 145773175 204082445 1020412225