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47747699908 = 2221415575397
BaseRepresentation
bin101100011101111111…
…000001010011000100
311120020121201110201221
4230131333001103010
51240241402344113
633533542530124
73310142516116
oct543577012304
9146217643657
1047747699908
1119282371717
129306736944
13466c25908c
14244d55b3b6
151396c9698d
hexb1dfc14c4

47747699908 has 12 divisors (see below), whose sum is σ = 83597517612. Its totient is φ = 23862694880.

The previous prime is 47747699887. The next prime is 47747699917. The reversal of 47747699908 is 80999674774.

47747699908 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 43761292864 + 3986407044 = 209192^2 + 63138^2 .

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, 2779135 + ... + 2796262.

It is an arithmetic number, because the mean of its divisors is an integer number (6966459801).

Almost surely, 247747699908 is an apocalyptic number.

It is an amenable number.

47747699908 is a deficient number, since it is larger than the sum of its proper divisors (35849817704).

47747699908 is a wasteful number, since it uses less digits than its factorization.

47747699908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5577542 (or 5577540 counting only the distinct ones).

The product of its (nonzero) digits is 192036096, while the sum is 70.

The spelling of 47747699908 in words is "forty-seven billion, seven hundred forty-seven million, six hundred ninety-nine thousand, nine hundred eight".

Divisors: 1 2 4 2141 4282 8564 5575397 11150794 22301588 11936924977 23873849954 47747699908