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1025012223 = 32113890247
BaseRepresentation
bin111101000110000…
…111000111111111
32122102202000102200
4331012013013333
54044400342343
6245413322543
734254313554
oct7506070777
92572660380
101025012223
11486657944
12247336453
13134486b11
149a1bca2b
155eec24d3
hex3d1871ff

1025012223 has 6 divisors (see below), whose sum is σ = 1480573224. Its totient is φ = 683341476.

The previous prime is 1025012213. The next prime is 1025012269. The reversal of 1025012223 is 3222105201.

It is not a de Polignac number, because 1025012223 - 24 = 1025012207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1025012196 and 1025012205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025012213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56945115 + ... + 56945132.

It is an arithmetic number, because the mean of its divisors is an integer number (246762204).

Almost surely, 21025012223 is an apocalyptic number.

1025012223 is a deficient number, since it is larger than the sum of its proper divisors (455561001).

1025012223 is a wasteful number, since it uses less digits than its factorization.

1025012223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113890253 (or 113890250 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1025012223 is about 32015.8120777843. The cubic root of 1025012223 is about 1008.2688454049.

Adding to 1025012223 its reverse (3222105201), we get a palindrome (4247117424).

The spelling of 1025012223 in words is "one billion, twenty-five million, twelve thousand, two hundred twenty-three".

Divisors: 1 3 9 113890247 341670741 1025012223