Search a number
-
+
1680001442 = 27120000103
BaseRepresentation
bin110010000100010…
…1100100110100010
311100002012220201122
41210020230212202
511420040021232
6434412132242
756426530250
oct14410544642
94302186648
101680001442
11792353a49
123aa767082
1320a0969c2
1411d19b5d0
159c753312
hex6422c9a2

1680001442 has 8 divisors (see below), whose sum is σ = 2880002496. Its totient is φ = 720000612.

The previous prime is 1680001441. The next prime is 1680001481. The reversal of 1680001442 is 2441000861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1680001441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60000038 + ... + 60000065.

It is an arithmetic number, because the mean of its divisors is an integer number (360000312).

Almost surely, 21680001442 is an apocalyptic number.

1680001442 is a deficient number, since it is larger than the sum of its proper divisors (1200001054).

1680001442 is a wasteful number, since it uses less digits than its factorization.

1680001442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120000112.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 1680001442 is about 40987.8206544334. The cubic root of 1680001442 is about 1188.7847306770.

The spelling of 1680001442 in words is "one billion, six hundred eighty million, one thousand, four hundred forty-two".

Divisors: 1 2 7 14 120000103 240000206 840000721 1680001442