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47878321245 = 3517917831777
BaseRepresentation
bin101100100101110001…
…010011010001011101
311120120201111201112020
4230211301103101131
51241023322234440
633554530330353
73313320005256
oct544561232135
9146521451466
1047878321245
111933a078437
1293424299b9
134690331601
142462a3db2d
1513a34993d0
hexb25c5345d

47878321245 has 16 divisors (see below), whose sum is σ = 77033280960. Its totient is φ = 25392449024.

The previous prime is 47878321223. The next prime is 47878321273. The reversal of 47878321245 is 54212387874.

It is a happy number.

47878321245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 47878321245 - 211 = 47878319197 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8913204 + ... + 8918573.

It is an arithmetic number, because the mean of its divisors is an integer number (4814580060).

Almost surely, 247878321245 is an apocalyptic number.

It is an amenable number.

47878321245 is a deficient number, since it is larger than the sum of its proper divisors (29154959715).

47878321245 is a wasteful number, since it uses less digits than its factorization.

47878321245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17831964.

The product of its digits is 3010560, while the sum is 51.

The spelling of 47878321245 in words is "forty-seven billion, eight hundred seventy-eight million, three hundred twenty-one thousand, two hundred forty-five".

Divisors: 1 3 5 15 179 537 895 2685 17831777 53495331 89158885 267476655 3191888083 9575664249 15959440415 47878321245