Search a number
-
+
47148648960 = 2935719311489
BaseRepresentation
bin101011111010010001…
…110100101000000000
311111200212111112022210
4223322101310220000
51233030023231320
633354303102120
73256246621650
oct537221645000
9144625445283
1047148648960
1118aa5201896
129179ba1940
1345a510346a
1423d3b80360
15135e3b50e0
hexafa474a00

47148648960 has 640 divisors, whose sum is σ = 187302297600. Its totient is φ = 9873653760.

The previous prime is 47148648959. The next prime is 47148648961. The reversal of 47148648960 is 6984684174.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (47148648959) and next prime (47148648961).

It is a tau number, because it is divible by the number of its divisors (640).

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a self number, because there is not a number n which added to its sum of digits gives 47148648960.

It is not an unprimeable number, because it can be changed into a prime (47148648961) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 31663896 + ... + 31665384.

It is an arithmetic number, because the mean of its divisors is an integer number (292659840).

Almost surely, 247148648960 is an apocalyptic number.

47148648960 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 47148648960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93651148800).

47148648960 is an abundant number, since it is smaller than the sum of its proper divisors (140153648640).

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

47148648960 is a wasteful number, since it uses less digits than its factorization.

47148648960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1572 (or 1556 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 57.

The spelling of 47148648960 in words is "forty-seven billion, one hundred forty-eight million, six hundred forty-eight thousand, nine hundred sixty".