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52507797 = 337946181
BaseRepresentation
bin1100100001001…
…1010010010101
310122210200011020
43020103102111
5101420222142
65113231353
71205210646
oct310232225
9118720136
1052507797
1127703981
1215702559
13ab55a04
146d8b6cd
154922cec
hex3213495

52507797 has 8 divisors (see below), whose sum is σ = 70196640. Its totient is φ = 34912080.

The previous prime is 52507787. The next prime is 52507801. The reversal of 52507797 is 79770525.

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

It is not a de Polignac number, because 52507797 - 27 = 52507669 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52507717) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 21954 + ... + 24227.

It is an arithmetic number, because the mean of its divisors is an integer number (8774580).

Almost surely, 252507797 is an apocalyptic number.

It is an amenable number.

52507797 is a deficient number, since it is larger than the sum of its proper divisors (17688843).

52507797 is a wasteful number, since it uses less digits than its factorization.

52507797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46563.

The product of its (nonzero) digits is 154350, while the sum is 42.

The square root of 52507797 is about 7246.2263972360. The cubic root of 52507797 is about 374.4621551856.

The spelling of 52507797 in words is "fifty-two million, five hundred seven thousand, seven hundred ninety-seven".

Divisors: 1 3 379 1137 46181 138543 17502599 52507797