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52712431 = 313534817
BaseRepresentation
bin1100100100010…
…1001111101111
310200012001212021
43021011033233
5101443244211
65121451011
71210022362
oct311051757
9120161767
1052712431
11278336a2
12157a0a67
13abc7bb5
1470020d9
154963771
hex32453ef

52712431 has 8 divisors (see below), whose sum is σ = 54578304. Its totient is φ = 50856960.

The previous prime is 52712417. The next prime is 52712437. The reversal of 52712431 is 13421725.

It is a happy number.

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 52712431 - 217 = 52581359 is a prime.

It is a super-2 number, since 2×527124312 = 5557200763859522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52712396 and 52712405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52712437) 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, 8535 + ... + 13351.

It is an arithmetic number, because the mean of its divisors is an integer number (6822288).

Almost surely, 252712431 is an apocalyptic number.

52712431 is a deficient number, since it is larger than the sum of its proper divisors (1865873).

52712431 is a wasteful number, since it uses less digits than its factorization.

52712431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5201.

The product of its digits is 1680, while the sum is 25.

The square root of 52712431 is about 7260.3327058751. The cubic root of 52712431 is about 374.9479773760.

The spelling of 52712431 in words is "fifty-two million, seven hundred twelve thousand, four hundred thirty-one".

Divisors: 1 31 353 4817 10943 149327 1700401 52712431