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7145071852 = 2229257239671
BaseRepresentation
bin1101010011110000…
…10010010011101100
3200102221201020221211
412221320102103230
5104113114244402
63140555404204
7342030052162
oct65170222354
920387636854
107145071852
113037230266
121474a53664
1389b39a989
144bad21232
152bc4234d7
hex1a9e124ec

7145071852 has 24 divisors (see below), whose sum is σ = 12985428960. Its totient is φ = 3435909120.

The previous prime is 7145071811. The next prime is 7145071853. The reversal of 7145071852 is 2581705417.

It is not an unprimeable number, because it can be changed into a prime (7145071853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90024 + ... + 149647.

It is an arithmetic number, because the mean of its divisors is an integer number (541059540).

Almost surely, 27145071852 is an apocalyptic number.

It is an amenable number.

7145071852 is a deficient number, since it is larger than the sum of its proper divisors (5840357108).

7145071852 is a wasteful number, since it uses less digits than its factorization.

7145071852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239961 (or 239959 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 40.

The square root of 7145071852 is about 84528.5268533647. The cubic root of 7145071852 is about 1926.0558082421.

The spelling of 7145071852 in words is "seven billion, one hundred forty-five million, seventy-one thousand, eight hundred fifty-two".

Divisors: 1 2 4 29 58 116 257 514 1028 7453 14906 29812 239671 479342 958684 6950459 13900918 27801836 61595447 123190894 246381788 1786267963 3572535926 7145071852