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52979693 = 1317323557
BaseRepresentation
bin1100101000011…
…0011111101101
310200200122110212
43022012133231
5102030322233
65131312205
71212214514
oct312063755
9120618425
1052979693
11279a6478
12158ab665
13ac8c740
14707167b
1549b7a48
hex32867ed

52979693 has 8 divisors (see below), whose sum is σ = 57387288. Its totient is φ = 48619584.

The previous prime is 52979683. The next prime is 52979737. The reversal of 52979693 is 39697925.

It can be written as a sum of positive squares in 4 ways, for example, as 243049 + 52736644 = 493^2 + 7262^2 .

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

It is not a de Polignac number, because 52979693 - 26 = 52979629 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52979683) 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, 9530 + ... + 14027.

It is an arithmetic number, because the mean of its divisors is an integer number (7173411).

Almost surely, 252979693 is an apocalyptic number.

It is an amenable number.

52979693 is a deficient number, since it is larger than the sum of its proper divisors (4407595).

52979693 is a wasteful number, since it uses less digits than its factorization.

52979693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23743.

The product of its digits is 918540, while the sum is 50.

The square root of 52979693 is about 7278.7150651746. The cubic root of 52979693 is about 375.5805951460.

The spelling of 52979693 in words is "fifty-two million, nine hundred seventy-nine thousand, six hundred ninety-three".

Divisors: 1 13 173 2249 23557 306241 4075361 52979693