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52381984 = 251636937
BaseRepresentation
bin1100011111010…
…0100100100000
310122120021120111
43013310210200
5101402210414
65110421104
71204145104
oct307644440
9118507514
1052381984
11276283a6
1215661794
13ab10675
146d57904
1548ea8c4
hex31f4920

52381984 has 12 divisors (see below), whose sum is σ = 103127094. Its totient is φ = 26190976.

The previous prime is 52381963. The next prime is 52381991. The reversal of 52381984 is 48918325.

It can be written as a sum of positive squares in only one way, i.e., 38093584 + 14288400 = 6172^2 + 3780^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 818437 + ... + 818500.

Almost surely, 252381984 is an apocalyptic number.

It is an amenable number.

52381984 is a deficient number, since it is larger than the sum of its proper divisors (50745110).

52381984 is a wasteful number, since it uses less digits than its factorization.

52381984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1636947 (or 1636939 counting only the distinct ones).

The product of its digits is 69120, while the sum is 40.

The square root of 52381984 is about 7237.5399135342. The cubic root of 52381984 is about 374.1628352862.

The spelling of 52381984 in words is "fifty-two million, three hundred eighty-one thousand, nine hundred eighty-four".

Divisors: 1 2 4 8 16 32 1636937 3273874 6547748 13095496 26190992 52381984