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47909938725 = 3452112150839
BaseRepresentation
bin101100100111101001…
…111010011000100101
311120122221000001120000
4230213221322120211
51241104421014400
634002020131513
73314152521435
oct544751723045
9146587001500
1047909938725
1119355a03090
129350b36b99
134696a5188c
142466d102c5
1513a6142600
hexb27a7a625

47909938725 has 60 divisors (see below), whose sum is σ = 96813610080. Its totient is φ = 23229050400.

The previous prime is 47909938721. The next prime is 47909938757. The reversal of 47909938725 is 52783990974.

47909938725 is a `hidden beast` number, since 479 + 0 + 9 + 93 + 8 + 72 + 5 = 666.

It is not a de Polignac number, because 47909938725 - 22 = 47909938721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47909938721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1053145 + ... + 1097694.

It is an arithmetic number, because the mean of its divisors is an integer number (1613560168).

Almost surely, 247909938725 is an apocalyptic number.

47909938725 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

47909938725 is an abundant number, since it is smaller than the sum of its proper divisors (48903671355).

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

47909938725 is a wasteful number, since it uses less digits than its factorization.

47909938725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2150872 (or 2150858 counting only the distinct ones).

The product of its (nonzero) digits is 34292160, while the sum is 63.

The spelling of 47909938725 in words is "forty-seven billion, nine hundred nine million, nine hundred thirty-eight thousand, seven hundred twenty-five".

Divisors: 1 3 5 9 11 15 25 27 33 45 55 75 81 99 135 165 225 275 297 405 495 675 825 891 1485 2025 2475 4455 7425 22275 2150839 6452517 10754195 19357551 23659229 32262585 53770975 58072653 70977687 96787755 118296145 161312925 174217959 212933061 290363265 354888435 483938775 591480725 638799183 871089795 1064665305 1451816325 1774442175 1916397549 3193995915 4355448975 5323326525 9581987745 15969979575 47909938725