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52207780 = 2255874447
BaseRepresentation
bin1100011100101…
…0000010100100
310122020102121111
43013022002210
5101331122110
65102554404
71202521162
oct307120244
9118212544
1052207780
1127519529
1215598a04
13aa7c2a1
146d10232
1548b3e8a
hex31ca0a4

52207780 has 24 divisors (see below), whose sum is σ = 109847808. Its totient is φ = 20842848.

The previous prime is 52207733. The next prime is 52207781. The reversal of 52207780 is 8770225.

It is not an unprimeable number, because it can be changed into a prime (52207781) 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, 9517 + ... + 13963.

It is an arithmetic number, because the mean of its divisors is an integer number (4576992).

Almost surely, 252207780 is an apocalyptic number.

It is an amenable number.

52207780 is an abundant number, since it is smaller than the sum of its proper divisors (57640028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52207780 is a wasteful number, since it uses less digits than its factorization.

52207780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5043 (or 5041 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 52207780 is about 7225.4951387431. The cubic root of 52207780 is about 373.7475967676.

The spelling of 52207780 in words is "fifty-two million, two hundred seven thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 587 1174 2348 2935 4447 5870 8894 11740 17788 22235 44470 88940 2610389 5220778 10441556 13051945 26103890 52207780