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52748445 = 356315573
BaseRepresentation
bin1100100100111…
…0000010011101
310200020220021010
43021032002131
5102000422240
65122325433
71210232361
oct311160235
9120226233
1052748445
1127858762
12157b9879
13ac0b3c9
1470112a1
15496e280
hex324e09d

52748445 has 16 divisors (see below), whose sum is σ = 84546432. Its totient is φ = 28082880.

The previous prime is 52748417. The next prime is 52748447. The reversal of 52748445 is 54484725.

It is not a de Polignac number, because 52748445 - 217 = 52617373 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52748447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6679 + ... + 12251.

It is an arithmetic number, because the mean of its divisors is an integer number (5284152).

Almost surely, 252748445 is an apocalyptic number.

It is an amenable number.

52748445 is a deficient number, since it is larger than the sum of its proper divisors (31797987).

52748445 is a wasteful number, since it uses less digits than its factorization.

52748445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6212.

The product of its digits is 179200, while the sum is 39.

The square root of 52748445 is about 7262.8124717633. The cubic root of 52748445 is about 375.0333481454.

The spelling of 52748445 in words is "fifty-two million, seven hundred forty-eight thousand, four hundred forty-five".

Divisors: 1 3 5 15 631 1893 3155 5573 9465 16719 27865 83595 3516563 10549689 17582815 52748445