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4156864906 = 22078432453
BaseRepresentation
bin1111011111000100…
…1011100110001010
3101201200212121122111
43313301023212022
532003124134111
61524252012534
7205003524445
oct36761134612
911650777574
104156864906
111843495147
1298016114a
1351328519c
142b610865c
15194e0da21
hexf7c4b98a

4156864906 has 4 divisors (see below), whose sum is σ = 6235297362. Its totient is φ = 2078432452.

The previous prime is 4156864891. The next prime is 4156864913. The reversal of 4156864906 is 6094686514.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4142080881 + 14784025 = 64359^2 + 3845^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4156864906.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1039216225 + ... + 1039216228.

Almost surely, 24156864906 is an apocalyptic number.

4156864906 is a deficient number, since it is larger than the sum of its proper divisors (2078432456).

4156864906 is a wasteful number, since it uses less digits than its factorization.

4156864906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2078432455.

The product of its (nonzero) digits is 1244160, while the sum is 49.

The square root of 4156864906 is about 64473.7536211442. The cubic root of 4156864906 is about 1607.8861841692.

The spelling of 4156864906 in words is "four billion, one hundred fifty-six million, eight hundred sixty-four thousand, nine hundred six".

Divisors: 1 2 2078432453 4156864906