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47809473504 = 2531338308873
BaseRepresentation
bin101100100001101010…
…101010101111100000
311120101220221220011220
4230201222222233200
51240403211123004
633544030535040
73311522551062
oct544152525740
9146356856156
1047809473504
1119304224081
129323367480
13467bca73c0
14245783b732
15139c3e9dd9
hexb21aaabe0

47809473504 has 48 divisors (see below), whose sum is σ = 135153707472. Its totient is φ = 14710606848.

The previous prime is 47809473497. The next prime is 47809473529. The reversal of 47809473504 is 40537490874.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19153189 + ... + 19155684.

It is an arithmetic number, because the mean of its divisors is an integer number (2815702239).

Almost surely, 247809473504 is an apocalyptic number.

It is an amenable number.

47809473504 is an abundant number, since it is smaller than the sum of its proper divisors (87344233968).

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

47809473504 is a wasteful number, since it uses less digits than its factorization.

47809473504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38308899 (or 38308891 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 51.

The spelling of 47809473504 in words is "forty-seven billion, eight hundred nine million, four hundred seventy-three thousand, five hundred four".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 78 96 104 156 208 312 416 624 1248 38308873 76617746 114926619 153235492 229853238 306470984 459706476 498015349 612941968 919412952 996030698 1225883936 1494046047 1838825904 1992061396 2988092094 3677651808 3984122792 5976184188 7968245584 11952368376 15936491168 23904736752 47809473504