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53126890 = 255312689
BaseRepresentation
bin1100101010101…
…0011011101010
310200222010101121
43022222123222
5102100030030
65134405454
71213366615
oct312523352
9120863347
1053126890
1127a97023
121596088a
13b01173b
1470ad17c
1549e647a
hex32aa6ea

53126890 has 8 divisors (see below), whose sum is σ = 95628420. Its totient is φ = 21250752.

The previous prime is 53126867. The next prime is 53126893. The reversal of 53126890 is 9862135.

It can be written as a sum of positive squares in 2 ways, for example, as 45981961 + 7144929 = 6781^2 + 2673^2 .

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

It is not an unprimeable number, because it can be changed into a prime (53126893) 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, 2656335 + ... + 2656354.

Almost surely, 253126890 is an apocalyptic number.

53126890 is a deficient number, since it is larger than the sum of its proper divisors (42501530).

53126890 is a wasteful number, since it uses less digits than its factorization.

53126890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5312696.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 53126890 is about 7288.8195203339. The cubic root of 53126890 is about 375.9281070106.

The spelling of 53126890 in words is "fifty-three million, one hundred twenty-six thousand, eight hundred ninety".

Divisors: 1 2 5 10 5312689 10625378 26563445 53126890