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47412788640 = 2535737381377
BaseRepresentation
bin101100001010000001…
…011011110110100000
311112101021112012211220
4230022001123312200
51234100133214030
633440420335040
73265635024330
oct541201336640
9145337465756
1047412788640
1119120312948
129232544480
134617a56a29
14241ac9b0c0
15137768da10
hexb0a05bda0

47412788640 has 192 divisors, whose sum is σ = 175299634944. Its totient is φ = 10544283648.

The previous prime is 47412788629. The next prime is 47412788641. The reversal of 47412788640 is 4688721474.

It is not an unprimeable number, because it can be changed into a prime (47412788641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66369 + ... + 315008.

It is an arithmetic number, because the mean of its divisors is an integer number (913018932).

Almost surely, 247412788640 is an apocalyptic number.

47412788640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47412788640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87649817472).

47412788640 is an abundant number, since it is smaller than the sum of its proper divisors (127886846304).

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

47412788640 is a wasteful number, since it uses less digits than its factorization.

47412788640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381439 (or 381431 counting only the distinct ones).

The product of its (nonzero) digits is 2408448, while the sum is 51.

The spelling of 47412788640 in words is "forty-seven billion, four hundred twelve million, seven hundred eighty-eight thousand, six hundred forty".