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52162155 = 3252939971
BaseRepresentation
bin1100011011111…
…0111001101011
310122011010000200
43012332321223
5101323142110
65102003243
71202241153
oct306767153
9118133020
1052162155
1127498221
1215576523
13aa645a6
146cdb763
1548a56c0
hex31bee6b

52162155 has 24 divisors (see below), whose sum is σ = 93534480. Its totient is φ = 26859840.

The previous prime is 52162141. The next prime is 52162189. The reversal of 52162155 is 55126125.

It is not a de Polignac number, because 52162155 - 27 = 52162027 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18681 + ... + 21290.

It is an arithmetic number, because the mean of its divisors is an integer number (3897270).

Almost surely, 252162155 is an apocalyptic number.

52162155 is a deficient number, since it is larger than the sum of its proper divisors (41372325).

52162155 is a wasteful number, since it uses less digits than its factorization.

52162155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40011 (or 40008 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 52162155 is about 7222.3372255801. The cubic root of 52162155 is about 373.6386908797.

It can be divided in two parts, 5 and 2162155, that added together give a triangular number (2162160 = T2079).

The spelling of 52162155 in words is "fifty-two million, one hundred sixty-two thousand, one hundred fifty-five".

Divisors: 1 3 5 9 15 29 45 87 145 261 435 1305 39971 119913 199855 359739 599565 1159159 1798695 3477477 5795795 10432431 17387385 52162155