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52180556 = 2213045139
BaseRepresentation
bin1100011100001…
…1011001001100
310122012001021012
43013003121030
5101324234211
65102224352
71202345621
oct307033114
9118161235
1052180556
112750002a
12155850b8
13aa6ca8c
146d04348
1548aad8b
hex31c364c

52180556 has 6 divisors (see below), whose sum is σ = 91315980. Its totient is φ = 26090276.

The previous prime is 52180553. The next prime is 52180571. The reversal of 52180556 is 65508125.

It is not an unprimeable number, because it can be changed into a prime (52180553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6522566 + ... + 6522573.

It is an arithmetic number, because the mean of its divisors is an integer number (15219330).

Almost surely, 252180556 is an apocalyptic number.

It is an amenable number.

52180556 is a deficient number, since it is larger than the sum of its proper divisors (39135424).

52180556 is a wasteful number, since it uses less digits than its factorization.

52180556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13045143 (or 13045141 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 32.

The square root of 52180556 is about 7223.6110083531. The cubic root of 52180556 is about 373.6826213069.

The spelling of 52180556 in words is "fifty-two million, one hundred eighty thousand, five hundred fifty-six".

Divisors: 1 2 4 13045139 26090278 52180556