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1025219097 = 32716273319
BaseRepresentation
bin111101000110111…
…001101000011001
32122110010112012200
4331012321220121
54044424002342
6245422000413
734256134650
oct7506715031
92573115180
101025219097
11486789311
12247416109
1313452a026
149a234197
156001394c
hex3d1b9a19

1025219097 has 12 divisors (see below), whose sum is σ = 1692425280. Its totient is φ = 585839448.

The previous prime is 1025219053. The next prime is 1025219101. The reversal of 1025219097 is 7909125201.

It is not a de Polignac number, because 1025219097 - 26 = 1025219033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1025219047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8136597 + ... + 8136722.

It is an arithmetic number, because the mean of its divisors is an integer number (141035440).

Almost surely, 21025219097 is an apocalyptic number.

It is an amenable number.

1025219097 is a deficient number, since it is larger than the sum of its proper divisors (667206183).

1025219097 is a wasteful number, since it uses less digits than its factorization.

1025219097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16273332 (or 16273329 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 1025219097 is about 32019.0427246037. The cubic root of 1025219097 is about 1008.3366724263.

The spelling of 1025219097 in words is "one billion, twenty-five million, two hundred nineteen thousand, ninety-seven".

Divisors: 1 3 7 9 21 63 16273319 48819957 113913233 146459871 341739699 1025219097