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1025006353 = 7220918497
BaseRepresentation
bin111101000110000…
…101101100010001
32122102201201101021
4331012011230101
54044400200403
6245413235441
734254260500
oct7506055421
92572651337
101025006353
11486653498
12247332b81
13134484247
149a1ba837
155eec08bd
hex3d185b11

1025006353 has 6 divisors (see below), whose sum is σ = 1192354386. Its totient is φ = 878576832.

The previous prime is 1025006341. The next prime is 1025006383. The reversal of 1025006353 is 3536005201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 987404929 + 37601424 = 31423^2 + 6132^2 .

It is not a de Polignac number, because 1025006353 - 25 = 1025006321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1025006303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10459200 + ... + 10459297.

It is an arithmetic number, because the mean of its divisors is an integer number (198725731).

Almost surely, 21025006353 is an apocalyptic number.

It is an amenable number.

1025006353 is a deficient number, since it is larger than the sum of its proper divisors (167348033).

1025006353 is an equidigital number, since it uses as much as digits as its factorization.

1025006353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20918511 (or 20918504 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 1025006353 is about 32015.7204042014. The cubic root of 1025006353 is about 1008.2669206963.

The spelling of 1025006353 in words is "one billion, twenty-five million, six thousand, three hundred fifty-three".

Divisors: 1 7 49 20918497 146429479 1025006353