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6642150632 = 2313202931477
BaseRepresentation
bin1100010111110011…
…10010110011101000
3122010220101012201222
412023321302303220
5102100342310012
63015032201212
7323412230435
oct61371626350
918126335658
106642150632
1128a9359097
121354539208
1381b132060
14470208b8c
1528d1ce972
hex18be72ce8

6642150632 has 32 divisors (see below), whose sum is σ = 13419071400. Its totient is φ = 3063999744.

The previous prime is 6642150569. The next prime is 6642150637. The reversal of 6642150632 is 2360512466.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6481216036 + 160934596 = 80506^2 + 12686^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6642150592 and 6642150601.

It is not an unprimeable number, because it can be changed into a prime (6642150637) 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, 195278 + ... + 226754.

Almost surely, 26642150632 is an apocalyptic number.

It is an amenable number.

6642150632 is an abundant number, since it is smaller than the sum of its proper divisors (6776920768).

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

6642150632 is a wasteful number, since it uses less digits than its factorization.

6642150632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33525 (or 33521 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 6642150632 is about 81499.3903780881. The cubic root of 6642150632 is about 1879.7621767972.

The spelling of 6642150632 in words is "six billion, six hundred forty-two million, one hundred fifty thousand, six hundred thirty-two".

Divisors: 1 2 4 8 13 26 52 104 2029 4058 8116 16232 26377 31477 52754 62954 105508 125908 211016 251816 409201 818402 1636804 3273608 63866833 127733666 255467332 510934664 830268829 1660537658 3321075316 6642150632