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523053247 = 4313987511
BaseRepresentation
bin11111001011010…
…010100010111111
31100110012212011111
4133023102202333
52032400200442
6123522502451
715650610403
oct3713224277
91313185144
10523053247
11249282712
12127204a27
1384497182
144d677103
1530dbdb17
hex1f2d28bf

523053247 has 8 divisors (see below), whose sum is σ = 539073920. Its totient is φ = 507207960.

The previous prime is 523053241. The next prime is 523053313. The reversal of 523053247 is 742350325.

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

It is a cyclic number.

It is not a de Polignac number, because 523053247 - 215 = 523020479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523053241) 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, 37779 + ... + 49732.

It is an arithmetic number, because the mean of its divisors is an integer number (67384240).

Almost surely, 2523053247 is an apocalyptic number.

523053247 is a deficient number, since it is larger than the sum of its proper divisors (16020673).

523053247 is a wasteful number, since it uses less digits than its factorization.

523053247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87693.

The product of its (nonzero) digits is 25200, while the sum is 31.

The square root of 523053247 is about 22870.3573868009. The cubic root of 523053247 is about 805.7159619358.

The spelling of 523053247 in words is "five hundred twenty-three million, fifty-three thousand, two hundred forty-seven".

Divisors: 1 43 139 5977 87511 3762973 12164029 523053247