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67630432 = 252113451
BaseRepresentation
bin1000000011111…
…11010101100000
311201020222111211
410001333111200
5114303133212
610413315504
71450564162
oct401772540
9151228454
1067630432
11351a2821
121a795b94
131101c10c
148da6932
155e0d9a7
hex407f560

67630432 has 12 divisors (see below), whose sum is σ = 133147476. Its totient is φ = 33815200.

The previous prime is 67630427. The next prime is 67630439. The reversal of 67630432 is 23403676.

It is a junction number, because it is equal to n+sod(n) for n = 67630394 and 67630403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67630439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056694 + ... + 1056757.

It is an arithmetic number, because the mean of its divisors is an integer number (11095623).

Almost surely, 267630432 is an apocalyptic number.

It is an amenable number.

67630432 is a deficient number, since it is larger than the sum of its proper divisors (65517044).

67630432 is a wasteful number, since it uses less digits than its factorization.

67630432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2113461 (or 2113453 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 31.

The square root of 67630432 is about 8223.7723703906. The cubic root of 67630432 is about 407.4247307251.

The spelling of 67630432 in words is "sixty-seven million, six hundred thirty thousand, four hundred thirty-two".

Divisors: 1 2 4 8 16 32 2113451 4226902 8453804 16907608 33815216 67630432