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52957961 = 77565423
BaseRepresentation
bin1100101000000…
…1001100001001
310200122112122222
43022001030021
5102024123321
65131023425
71212064250
oct312011411
9120575588
1052957961
1127991111
121589ab75
13ac82894
147067797
1549b13ab
hex3281309

52957961 has 4 divisors (see below), whose sum is σ = 60523392. Its totient is φ = 45392532.

The previous prime is 52957913. The next prime is 52957967. The reversal of 52957961 is 16975925.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-52957961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52957967) 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, 3782705 + ... + 3782718.

It is an arithmetic number, because the mean of its divisors is an integer number (15130848).

Almost surely, 252957961 is an apocalyptic number.

It is an amenable number.

52957961 is a deficient number, since it is larger than the sum of its proper divisors (7565431).

52957961 is an equidigital number, since it uses as much as digits as its factorization.

52957961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7565430.

The product of its digits is 170100, while the sum is 44.

The square root of 52957961 is about 7277.2220661458. Note that the first 3 decimals coincide. The cubic root of 52957961 is about 375.5292343742.

The spelling of 52957961 in words is "fifty-two million, nine hundred fifty-seven thousand, nine hundred sixty-one".

Divisors: 1 7 7565423 52957961