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52745252 = 2271883759
BaseRepresentation
bin1100100100110…
…1010000100100
310200020201212212
43021031100210
5102000322002
65122302552
71210220150
oct311152044
9120221785
1052745252
112785631a
12157b7a58
13ac09b11
147010060
15496d352
hex324d424

52745252 has 12 divisors (see below), whose sum is σ = 105490560. Its totient is φ = 22605096.

The previous prime is 52745243. The next prime is 52745267. The reversal of 52745252 is 25254725.

52745252 is an admirable number.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 941852 + ... + 941907.

It is an arithmetic number, because the mean of its divisors is an integer number (8790880).

Almost surely, 252745252 is an apocalyptic number.

It is an amenable number.

52745252 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

52745252 is a wasteful number, since it uses less digits than its factorization.

52745252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1883770 (or 1883768 counting only the distinct ones).

The product of its digits is 28000, while the sum is 32.

The square root of 52745252 is about 7262.5926500114. The cubic root of 52745252 is about 375.0257807461.

Adding to 52745252 its reverse (25254725), we get a palindrome (77999977).

The spelling of 52745252 in words is "fifty-two million, seven hundred forty-five thousand, two hundred fifty-two".

Divisors: 1 2 4 7 14 28 1883759 3767518 7535036 13186313 26372626 52745252