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52480990 = 255248099
BaseRepresentation
bin1100100000110…
…0101111011110
310122202022101101
43020030233132
5101413342430
65112503314
71205036542
oct310145736
9118668341
1052480990
1127695821
12156aab3a
13ab46753
146d81a22
154919dca
hex320cbde

52480990 has 8 divisors (see below), whose sum is σ = 94465800. Its totient is φ = 20992392.

The previous prime is 52480973. The next prime is 52480991. The reversal of 52480990 is 9908425.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×524809902 = 5508508622760200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52480991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2624040 + ... + 2624059.

It is an arithmetic number, because the mean of its divisors is an integer number (11808225).

Almost surely, 252480990 is an apocalyptic number.

52480990 is a deficient number, since it is larger than the sum of its proper divisors (41984810).

52480990 is a wasteful number, since it uses less digits than its factorization.

52480990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5248106.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 52480990 is about 7244.3764396944. The cubic root of 52480990 is about 374.3984191544.

The spelling of 52480990 in words is "fifty-two million, four hundred eighty thousand, nine hundred ninety".

Divisors: 1 2 5 10 5248099 10496198 26240495 52480990