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1994448960 = 2633573673
BaseRepresentation
bin111011011100000…
…1110000001000000
312010222220111122000
41312320032001000
513041034331320
6525523544000
7100265352000
oct16670160100
95128814560
101994448960
119338a6029
12477b2b000
1325a28281a
1414cc52000
15ba167c90
hex76e0e040

1994448960 has 448 divisors, whose sum is σ = 8217408000. Its totient is φ = 455196672.

The previous prime is 1994448947. The next prime is 1994448991. The reversal of 1994448960 is 698444991.

It is a happy number.

1994448960 is a `hidden beast` number, since 19 + 94 + 4 + 489 + 60 = 666.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 1994448897 and 1994448906.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2963184 + ... + 2963856.

Almost surely, 21994448960 is an apocalyptic number.

1994448960 is a gapful number since it is divisible by the number (10) 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 1994448960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4108704000).

1994448960 is an abundant number, since it is smaller than the sum of its proper divisors (6222959040).

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

1994448960 is an equidigital number, since it uses as much as digits as its factorization.

1994448960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720 (or 690 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The square root of 1994448960 is about 44659.2539122632. The cubic root of 1994448960 is about 1258.7543244474.

The spelling of 1994448960 in words is "one billion, nine hundred ninety-four million, four hundred forty-eight thousand, nine hundred sixty".