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47015741640 = 23357233789739
BaseRepresentation
bin101011110010010110…
…110100100011001000
311111100121102010202110
4223302112310203020
51232242012213030
633333154302320
73253044132030
oct536226644310
9144317363673
1047015741640
1118a3718462a
1291415879a0
13458370a58a
1423c02648c0
1513528b01b0
hexaf25b48c8

47015741640 has 512 divisors, whose sum is σ = 174928896000. Its totient is φ = 9875644416.

The previous prime is 47015741627. The next prime is 47015741651. The reversal of 47015741640 is 4614751074.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 63620391 + ... + 63621129.

It is an arithmetic number, because the mean of its divisors is an integer number (341658000).

Almost surely, 247015741640 is an apocalyptic number.

47015741640 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 47015741640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87464448000).

47015741640 is an abundant number, since it is smaller than the sum of its proper divisors (127913154360).

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

47015741640 is a wasteful number, since it uses less digits than its factorization.

47015741640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909 (or 905 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 39.

The spelling of 47015741640 in words is "forty-seven billion, fifteen million, seven hundred forty-one thousand, six hundred forty".