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7057807892 = 221978956609
BaseRepresentation
bin1101001001010110…
…11001101000010100
3200012212111210022022
412210223121220110
5103423244323032
63124201152312
7336620243252
oct64453315024
920185453268
107057807892
112aa1a48593
12144b78b698
138862961b5
144ad4c75d2
152b4937512
hex1a4ad9a14

7057807892 has 12 divisors (see below), whose sum is σ = 12413861460. Its totient is φ = 3510990336.

The previous prime is 7057807877. The next prime is 7057807919. The reversal of 7057807892 is 2987087507.

It can be written as a sum of positive squares in 2 ways, for example, as 3798996496 + 3258811396 = 61636^2 + 57086^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4477517 + ... + 4479092.

It is an arithmetic number, because the mean of its divisors is an integer number (1034488455).

Almost surely, 27057807892 is an apocalyptic number.

It is an amenable number.

7057807892 is a deficient number, since it is larger than the sum of its proper divisors (5356053568).

7057807892 is a wasteful number, since it uses less digits than its factorization.

7057807892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8956810 (or 8956808 counting only the distinct ones).

The product of its (nonzero) digits is 1975680, while the sum is 53.

The square root of 7057807892 is about 84010.7605726790. The cubic root of 7057807892 is about 1918.1825876006.

The spelling of 7057807892 in words is "seven billion, fifty-seven million, eight hundred seven thousand, eight hundred ninety-two".

Divisors: 1 2 4 197 394 788 8956609 17913218 35826436 1764451973 3528903946 7057807892