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52277805 = 355172531
BaseRepresentation
bin1100011101101…
…1001000101101
310122100222200000
43013123020231
5101340342210
65104254513
71203232266
oct307331055
9118328600
1052277805
11275670a8
1215611439
13aaa5118
146d2b96d
1548c9ac0
hex31db22d

52277805 has 48 divisors (see below), whose sum is σ = 99537984. Its totient is φ = 26231040.

The previous prime is 52277803. The next prime is 52277821. The reversal of 52277805 is 50877225.

It is not a de Polignac number, because 52277805 - 21 = 52277803 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52277805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52277803) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19390 + ... + 21920.

It is an arithmetic number, because the mean of its divisors is an integer number (2073708).

Almost surely, 252277805 is an apocalyptic number.

It is an amenable number.

52277805 is a deficient number, since it is larger than the sum of its proper divisors (47260179).

52277805 is a wasteful number, since it uses less digits than its factorization.

52277805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2568 (or 2556 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The square root of 52277805 is about 7230.3392036612. The cubic root of 52277805 is about 373.9146215739.

The spelling of 52277805 in words is "fifty-two million, two hundred seventy-seven thousand, eight hundred five".

Divisors: 1 3 5 9 15 17 27 45 51 81 85 135 153 243 255 405 459 765 1215 1377 2295 2531 4131 6885 7593 12655 20655 22779 37965 43027 68337 113895 129081 205011 215135 341685 387243 615033 645405 1025055 1161729 1936215 3075165 3485187 5808645 10455561 17425935 52277805