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1021060225 = 52109374701
BaseRepresentation
bin111100110111000…
…010010010000001
32122011022020022101
4330313002102001
54042342411400
6245152510401
734205603653
oct7467022201
92564266271
101021060225
114843a8729
12245b4b401
13133702063
14998706d3
155e99156a
hex3cdc2481

1021060225 has 12 divisors (see below), whose sum is σ = 1277733820. Its totient is φ = 809352000.

The previous prime is 1021060193. The next prime is 1021060231. The reversal of 1021060225 is 5220601201.

It can be written as a sum of positive squares in 6 ways, for example, as 71927361 + 949132864 = 8481^2 + 30808^2 .

It is not a de Polignac number, because 1021060225 - 25 = 1021060193 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 184626 + ... + 190075.

Almost surely, 21021060225 is an apocalyptic number.

It is an amenable number.

1021060225 is a deficient number, since it is larger than the sum of its proper divisors (256673595).

1021060225 is a wasteful number, since it uses less digits than its factorization.

1021060225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374820 (or 374815 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1021060225 is about 31954.0330005463. The cubic root of 1021060225 is about 1006.9713621736.

Adding to 1021060225 its reverse (5220601201), we get a palindrome (6241661426).

The spelling of 1021060225 in words is "one billion, twenty-one million, sixty thousand, two hundred twenty-five".

Divisors: 1 5 25 109 545 2725 374701 1873505 9367525 40842409 204212045 1021060225