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542969440 = 25513261043
BaseRepresentation
bin100000010111010…
…000111001100000
31101211200201001021
4200113100321200
52103000010230
6125513415224
716312110166
oct4027207140
91354621037
10542969440
11259545a82
12131a0a514
138864b3c0
145217d236
1532a04c7a
hex205d0e60

542969440 has 48 divisors (see below), whose sum is σ = 1381444848. Its totient is φ = 200480256.

The previous prime is 542969429. The next prime is 542969461. The reversal of 542969440 is 44969245.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128442 + ... + 132601.

It is an arithmetic number, because the mean of its divisors is an integer number (28780101).

Almost surely, 2542969440 is an apocalyptic number.

It is an amenable number.

542969440 is an abundant number, since it is smaller than the sum of its proper divisors (838475408).

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

542969440 is a wasteful number, since it uses less digits than its factorization.

542969440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261071 (or 261063 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 43.

The square root of 542969440 is about 23301.7046586725. The cubic root of 542969440 is about 815.8152054946.

It can be divided in two parts, 54296 and 9440, that added together give a palindrome (63736).

The spelling of 542969440 in words is "five hundred forty-two million, nine hundred sixty-nine thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 13 16 20 26 32 40 52 65 80 104 130 160 208 260 416 520 1040 2080 261043 522086 1044172 1305215 2088344 2610430 3393559 4176688 5220860 6787118 8353376 10441720 13574236 16967795 20883440 27148472 33935590 41766880 54296944 67871180 108593888 135742360 271484720 542969440