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53072961 = 331570677
BaseRepresentation
bin1100101001110…
…1010001000001
310200212101102020
43022131101001
5102041313321
65133312053
71213053444
oct312352101
9120771366
1053072961
1127a5a557
1215935629
13acc3026
14709765b
1549d54c6
hex329d441

53072961 has 8 divisors (see below), whose sum is σ = 73046784. Its totient is φ = 34240560.

The previous prime is 53072953. The next prime is 53072969. The reversal of 53072961 is 16927035.

It is an interprime number because it is at equal distance from previous prime (53072953) and next prime (53072969).

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

It is not a de Polignac number, because 53072961 - 23 = 53072953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53072969) 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, 285246 + ... + 285431.

It is an arithmetic number, because the mean of its divisors is an integer number (9130848).

Almost surely, 253072961 is an apocalyptic number.

It is an amenable number.

53072961 is a deficient number, since it is larger than the sum of its proper divisors (19973823).

53072961 is a wasteful number, since it uses less digits than its factorization.

53072961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570711.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 53072961 is about 7285.1191479618. The cubic root of 53072961 is about 375.8008626553.

Adding to 53072961 its reverse (16927035), we get a palindrome (69999996).

The spelling of 53072961 in words is "fifty-three million, seventy-two thousand, nine hundred sixty-one".

Divisors: 1 3 31 93 570677 1712031 17690987 53072961