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3873919028 = 227219764893
BaseRepresentation
bin1110011011100111…
…0101000000110100
3100222222110110212112
43212321311000310
530413210402103
61440223310152
7164666524400
oct34671650064
910888413775
103873919028
1117087a9781
1290144b358
134997789a5
1428a6d4100
1517a16ccd8
hexe6e75034

3873919028 has 18 divisors (see below), whose sum is σ = 7886192706. Its totient is φ = 1660250928.

The previous prime is 3873919001. The next prime is 3873919037. The reversal of 3873919028 is 8209193783.

It is a happy number.

3873919028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2041051684 + 1832867344 = 45178^2 + 42812^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9882251 + ... + 9882642.

It is an arithmetic number, because the mean of its divisors is an integer number (438121817).

Almost surely, 23873919028 is an apocalyptic number.

It is an amenable number.

3873919028 is an abundant number, since it is smaller than the sum of its proper divisors (4012273678).

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

3873919028 is a wasteful number, since it uses less digits than its factorization.

3873919028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19764911 (or 19764902 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 3873919028 is about 62240.8148082912. The cubic root of 3873919028 is about 1570.5442590845.

The spelling of 3873919028 in words is "three billion, eight hundred seventy-three million, nine hundred nineteen thousand, twenty-eight".

Divisors: 1 2 4 7 14 28 49 98 196 19764893 39529786 79059572 138354251 276708502 553417004 968479757 1936959514 3873919028