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47909812470 = 23513122845673
BaseRepresentation
bin101100100111101001…
…011011100011110110
311120122220202122100220
4230213221123203312
51241104402444340
634002013315210
73314151454362
oct544751334366
9146586678326
1047909812470
1119355927243
129350a95b06
134696a09280
142466cba2a2
1513a6119ed0
hexb27a5b8f6

47909812470 has 32 divisors (see below), whose sum is σ = 123828439392. Its totient is φ = 11793184512.

The previous prime is 47909812453. The next prime is 47909812477. The reversal of 47909812470 is 7421890974.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47909812477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61422447 + ... + 61423226.

It is an arithmetic number, because the mean of its divisors is an integer number (3869638731).

Almost surely, 247909812470 is an apocalyptic number.

47909812470 is an abundant number, since it is smaller than the sum of its proper divisors (75918626922).

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

47909812470 is a wasteful number, since it uses less digits than its factorization.

47909812470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122845696.

The product of its (nonzero) digits is 1016064, while the sum is 51.

The spelling of 47909812470 in words is "forty-seven billion, nine hundred nine million, eight hundred twelve thousand, four hundred seventy".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 122845673 245691346 368537019 614228365 737074038 1228456730 1596993749 1842685095 3193987498 3685370190 4790981247 7984968745 9581962494 15969937490 23954906235 47909812470