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52604420 = 225111571523
BaseRepresentation
bin1100100010101…
…0111000000100
310122222120200212
43020222320010
5101431320140
65115254552
71206062441
oct310527004
9118876625
1052604420
112776a530
121574a458
13ab8a99b
146db49c8
154941765
hex322ae04

52604420 has 48 divisors (see below), whose sum is σ = 121359168. Its totient is φ = 18994560.

The previous prime is 52604399. The next prime is 52604423. The reversal of 52604420 is 2440625.

It is not an unprimeable number, because it can be changed into a prime (52604423) 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, 33779 + ... + 35301.

It is an arithmetic number, because the mean of its divisors is an integer number (2528316).

Almost surely, 252604420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52604420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60679584).

52604420 is an abundant number, since it is smaller than the sum of its proper divisors (68754748).

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

52604420 is a wasteful number, since it uses less digits than its factorization.

52604420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1700 (or 1698 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 52604420 is about 7252.8904582932. The cubic root of 52604420 is about 374.6917051327.

The spelling of 52604420 in words is "fifty-two million, six hundred four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 157 220 314 628 785 1523 1570 1727 3046 3140 3454 6092 6908 7615 8635 15230 16753 17270 30460 33506 34540 67012 83765 167530 239111 335060 478222 956444 1195555 2391110 2630221 4782220 5260442 10520884 13151105 26302210 52604420