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19001479146 = 23131249195043
BaseRepresentation
bin10001101100100100…
…111000111111101010
31211001020122011010220
4101230210320333222
5302403334313041
612421255350510
71241605623246
oct215444707752
954036564126
1019001479146
118070926581
123823682436
131a3a867ab0
14cc3841426
1576327cd66
hex46c938fea

19001479146 has 32 divisors (see below), whose sum is σ = 40959240000. Its totient is φ = 5841897984.

The previous prime is 19001479067. The next prime is 19001479163. The reversal of 19001479146 is 64197410091.

It is a super-3 number, since 3×190014791463 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 19001479098 and 19001479107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100 + ... + 194943.

It is an arithmetic number, because the mean of its divisors is an integer number (1279976250).

Almost surely, 219001479146 is an apocalyptic number.

19001479146 is an abundant number, since it is smaller than the sum of its proper divisors (21957760854).

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

19001479146 is a wasteful number, since it uses less digits than its factorization.

19001479146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196310.

The product of its (nonzero) digits is 54432, while the sum is 42.

The spelling of 19001479146 in words is "nineteen billion, one million, four hundred seventy-nine thousand, one hundred forty-six".

Divisors: 1 2 3 6 13 26 39 78 1249 2498 3747 7494 16237 32474 48711 97422 195043 390086 585129 1170258 2535559 5071118 7606677 15213354 243608707 487217414 730826121 1461652242 3166913191 6333826382 9500739573 19001479146