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52081716 = 2234340143
BaseRepresentation
bin1100011010101…
…1010000110100
310122000000200110
43012223100310
5101313103331
65100143020
71201454511
oct306532064
9118000613
1052081716
1127442845
1215537a70
13aa36aab
146cba308
15488b946
hex31ab434

52081716 has 12 divisors (see below), whose sum is σ = 121524032. Its totient is φ = 17360568.

The previous prime is 52081663. The next prime is 52081723. The reversal of 52081716 is 61718025.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2170060 + ... + 2170083.

Almost surely, 252081716 is an apocalyptic number.

It is an amenable number.

52081716 is an abundant number, since it is smaller than the sum of its proper divisors (69442316).

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

52081716 is a wasteful number, since it uses less digits than its factorization.

52081716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4340150 (or 4340148 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 52081716 is about 7216.7663118602. The cubic root of 52081716 is about 373.4465299463.

The spelling of 52081716 in words is "fifty-two million, eighty-one thousand, seven hundred sixteen".

Divisors: 1 2 3 4 6 12 4340143 8680286 13020429 17360572 26040858 52081716