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52312947 = 319917771
BaseRepresentation
bin1100011110001…
…1101101110011
310122102202212120
43013203231303
5101343003242
65105125323
71203436611
oct307435563
9118382776
1052312947
1127590545
1215629843
13aab810b
146d3a6b1
1548d51ec
hex31e3b73

52312947 has 8 divisors (see below), whose sum is σ = 73421760. Its totient is φ = 33039720.

The previous prime is 52312943. The next prime is 52312969. The reversal of 52312947 is 74921325.

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

It is not a de Polignac number, because 52312947 - 22 = 52312943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52312943) 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, 458829 + ... + 458942.

It is an arithmetic number, because the mean of its divisors is an integer number (9177720).

Almost surely, 252312947 is an apocalyptic number.

52312947 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

52312947 is a deficient number, since it is larger than the sum of its proper divisors (21108813).

52312947 is a wasteful number, since it uses less digits than its factorization.

52312947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917793.

The product of its digits is 15120, while the sum is 33.

The square root of 52312947 is about 7232.7689718392. The cubic root of 52312947 is about 373.9983866593.

The spelling of 52312947 in words is "fifty-two million, three hundred twelve thousand, nine hundred forty-seven".

Divisors: 1 3 19 57 917771 2753313 17437649 52312947