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1807102108452 = 223150591842371
BaseRepresentation
bin11010010010111111101…
…011011110001100100100
320101202110001102122201110
4122102333223132030210
5214101421114432302
63502100553425020
7244362450323424
oct32227753361444
96352401378643
101807102108452
1163742a035903
1225228aa0b170
1310154174c544
146366db08484
15320182e1b6c
hex1a4bfade324

1807102108452 has 12 divisors (see below), whose sum is σ = 4216571586416. Its totient is φ = 602367369480.

The previous prime is 1807102108451. The next prime is 1807102108517. The reversal of 1807102108452 is 2548012017081.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1807102108452.

It is not an unprimeable number, because it can be changed into a prime (1807102108451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75295921174 + ... + 75295921197.

Almost surely, 21807102108452 is an apocalyptic number.

1807102108452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1807102108452 is an abundant number, since it is smaller than the sum of its proper divisors (2409469477964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1807102108452 is a wasteful number, since it uses less digits than its factorization.

1807102108452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150591842378 (or 150591842376 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 39.

The spelling of 1807102108452 in words is "one trillion, eight hundred seven billion, one hundred two million, one hundred eight thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 12 150591842371 301183684742 451775527113 602367369484 903551054226 1807102108452