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52206973 = 713244131
BaseRepresentation
bin1100011100100…
…1110101111101
310122020101111121
43013021311331
5101331110343
65102550541
71202515630
oct307116575
9118211447
1052206973
1127518965
1215598451
13aa7bb00
146d0dc17
1548b3aed
hex31c9d7d

52206973 has 12 divisors (see below), whose sum is σ = 64609248. Its totient is φ = 41305680.

The previous prime is 52206943. The next prime is 52206977. The reversal of 52206973 is 37960225.

It is a happy number.

It is not a de Polignac number, because 52206973 - 217 = 52075901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52206977) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20883 + ... + 23248.

It is an arithmetic number, because the mean of its divisors is an integer number (5384104).

Almost surely, 252206973 is an apocalyptic number.

It is an amenable number.

52206973 is a deficient number, since it is larger than the sum of its proper divisors (12402275).

52206973 is a wasteful number, since it uses less digits than its factorization.

52206973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44164 (or 44151 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 52206973 is about 7225.4392946035. The cubic root of 52206973 is about 373.7456710274.

It can be divided in two parts, 52 and 206973, that added together give a square (207025 = 4552).

The spelling of 52206973 in words is "fifty-two million, two hundred six thousand, nine hundred seventy-three".

Divisors: 1 7 13 91 169 1183 44131 308917 573703 4015921 7458139 52206973