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52908973 = 1311336017
BaseRepresentation
bin1100100111010…
…1001110101101
310200120001110121
43021311032231
5102021041343
65130004541
71211501365
oct311651655
9120501417
1052908973
1127958327
1215876751
13ac664b0
1470539a5
1549a1aed
hex32753ad

52908973 has 8 divisors (see below), whose sum is σ = 57484728. Its totient is φ = 48405504.

The previous prime is 52908967. The next prime is 52909007. The reversal of 52908973 is 37980925.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 751689 + 52157284 = 867^2 + 7222^2 .

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 52908973 - 213 = 52900781 is a prime.

It is a super-3 number, since 3×529089733 (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52908923) 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, 16540 + ... + 19477.

It is an arithmetic number, because the mean of its divisors is an integer number (7185591).

Almost surely, 252908973 is an apocalyptic number.

It is an amenable number.

52908973 is a deficient number, since it is larger than the sum of its proper divisors (4575755).

52908973 is a wasteful number, since it uses less digits than its factorization.

52908973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36143.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 52908973 is about 7273.8554426109. The cubic root of 52908973 is about 375.4134060130.

The spelling of 52908973 in words is "fifty-two million, nine hundred eight thousand, nine hundred seventy-three".

Divisors: 1 13 113 1469 36017 468221 4069921 52908973