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7130251768 = 23891281471
BaseRepresentation
bin1101010001111111…
…10000000111111000
3200101220211022121211
412220333300013320
5104100321024033
63135310012504
7341460066013
oct65077600770
920356738554
107130251768
113029928762
12146baa7134
138982ac1b3
144b8d8437a
152bae972cd
hex1a8ff01f8

7130251768 has 8 divisors (see below), whose sum is σ = 13369222080. Its totient is φ = 3565125880.

The previous prime is 7130251727. The next prime is 7130251801. The reversal of 7130251768 is 8671520317.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 7130251768.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 445640728 + ... + 445640743.

It is an arithmetic number, because the mean of its divisors is an integer number (1671152760).

Almost surely, 27130251768 is an apocalyptic number.

It is an amenable number.

7130251768 is a deficient number, since it is larger than the sum of its proper divisors (6238970312).

7130251768 is a wasteful number, since it uses less digits than its factorization.

7130251768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891281477 (or 891281473 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 7130251768 is about 84440.8181390967. The cubic root of 7130251768 is about 1924.7232316323.

The spelling of 7130251768 in words is "seven billion, one hundred thirty million, two hundred fifty-one thousand, seven hundred sixty-eight".

Divisors: 1 2 4 8 891281471 1782562942 3565125884 7130251768