Search a number
-
+
42947712000 = 210335317243
BaseRepresentation
bin100111111111111000…
…100001010000000000
311002212002200211012000
4213333320201100000
51200424103241000
631421354304000
73050166346224
oct477770412000
9132762624160
1042947712000
1117239955766
1283a7128000
13408598a14b
142115c82784
1511b569d000
hex9ffe21400

42947712000 has 1056 divisors, whose sum is σ = 172541466240. Its totient is φ = 10528358400.

The previous prime is 42947711999. The next prime is 42947712019. The reversal of 42947712000 is 21774924.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 998783979 + ... + 998784021.

It is an arithmetic number, because the mean of its divisors is an integer number (163391540).

Almost surely, 242947712000 is an apocalyptic number.

42947712000 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 42947712000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86270733120).

42947712000 is an abundant number, since it is smaller than the sum of its proper divisors (129593754240).

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

42947712000 is a wasteful number, since it uses less digits than its factorization.

42947712000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The spelling of 42947712000 in words is "forty-two billion, nine hundred forty-seven million, seven hundred twelve thousand".