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52154481 = 3101172127
BaseRepresentation
bin1100011011110…
…1000001110001
310122010201111110
43012331001301
5101322420411
65101503533
71202206611
oct306750161
9118121443
1052154481
1127492485
1215571ba9
13aa60c52
146cd8a41
1548a32a6
hex31bd071

52154481 has 8 divisors (see below), whose sum is σ = 70228224. Its totient is φ = 34425200.

The previous prime is 52154477. The next prime is 52154489. The reversal of 52154481 is 18445125.

52154481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52154481 - 22 = 52154477 is a prime.

It is a super-2 number, since 2×521544812 = 5440179776758722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52154489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85761 + ... + 86366.

It is an arithmetic number, because the mean of its divisors is an integer number (8778528).

Almost surely, 252154481 is an apocalyptic number.

It is an amenable number.

52154481 is a deficient number, since it is larger than the sum of its proper divisors (18073743).

52154481 is a wasteful number, since it uses less digits than its factorization.

52154481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172231.

The product of its digits is 6400, while the sum is 30.

The square root of 52154481 is about 7221.8059375754. The cubic root of 52154481 is about 373.6203669695.

The spelling of 52154481 in words is "fifty-two million, one hundred fifty-four thousand, four hundred eighty-one".

Divisors: 1 3 101 303 172127 516381 17384827 52154481