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52170384 = 2437155269
BaseRepresentation
bin1100011100000…
…0111010010000
310122011112022110
43013000322100
5101323423014
65102105320
71202304150
oct307007220
9118145273
1052170384
11274a3422
121557b240
13aa68266
146d00760
1548a7d59
hex31c0e90

52170384 has 40 divisors (see below), whose sum is σ = 154027840. Its totient is φ = 14905728.

The previous prime is 52170367. The next prime is 52170389. The reversal of 52170384 is 48307125.

It is not an unprimeable number, because it can be changed into a prime (52170389) 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, 77299 + ... + 77970.

It is an arithmetic number, because the mean of its divisors is an integer number (3850696).

Almost surely, 252170384 is an apocalyptic number.

It is an amenable number.

52170384 is an abundant number, since it is smaller than the sum of its proper divisors (101857456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52170384 is a wasteful number, since it uses less digits than its factorization.

52170384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155287 (or 155281 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 52170384 is about 7222.9068940420. The cubic root of 52170384 is about 373.6583380174.

The spelling of 52170384 in words is "fifty-two million, one hundred seventy thousand, three hundred eighty-four".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 168 336 155269 310538 465807 621076 931614 1086883 1242152 1863228 2173766 2484304 3260649 3726456 4347532 6521298 7452912 8695064 13042596 17390128 26085192 52170384