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47984681652 = 2233998723471
BaseRepresentation
bin101100101100000111…
…000010001010110100
311120212010122101120120
4230230013002022310
51241233034303102
634013250131540
73316051031025
oct545407021264
9146763571516
1047984681652
11193941135a6
129371b80bb0
1346a939116b
142472c08c4c
1513ac9a86bc
hexb2c1c22b4

47984681652 has 12 divisors (see below), whose sum is σ = 111964257216. Its totient is φ = 15994893880.

The previous prime is 47984681617. The next prime is 47984681669. The reversal of 47984681652 is 25618648974.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 1999361724 + ... + 1999361747.

It is an arithmetic number, because the mean of its divisors is an integer number (9330354768).

Almost surely, 247984681652 is an apocalyptic number.

It is an amenable number.

47984681652 is an abundant number, since it is smaller than the sum of its proper divisors (63979575564).

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

47984681652 is a wasteful number, since it uses less digits than its factorization.

47984681652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3998723478 (or 3998723476 counting only the distinct ones).

The product of its digits is 23224320, while the sum is 60.

The spelling of 47984681652 in words is "forty-seven billion, nine hundred eighty-four million, six hundred eighty-one thousand, six hundred fifty-two".

Divisors: 1 2 3 4 6 12 3998723471 7997446942 11996170413 15994893884 23992340826 47984681652