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1420800018 = 231130677019
BaseRepresentation
bin101010010101111…
…1011000000010010
310200000111010012220
41110223323000102
510402211100033
6352552401510
750131413051
oct12453730022
93600433186
101420800018
1166a0060a0
123379a6296
13198482091
14d69a8398
1584b02bb3
hex54afb012

1420800018 has 32 divisors (see below), whose sum is σ = 3101379840. Its totient is φ = 430343760.

The previous prime is 1420800001. The next prime is 1420800047. The reversal of 1420800018 is 8100080241.

It is a super-2 number, since 2×14208000182 = 4037345382297600648, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198913 + ... + 205931.

It is an arithmetic number, because the mean of its divisors is an integer number (96918120).

Almost surely, 21420800018 is an apocalyptic number.

1420800018 is an abundant number, since it is smaller than the sum of its proper divisors (1680579822).

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

1420800018 is a wasteful number, since it uses less digits than its factorization.

1420800018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10102.

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 1420800018 is about 37693.5010048151. The cubic root of 1420800018 is about 1124.2019078317.

Adding to 1420800018 its reverse (8100080241), we get a palindrome (9520880259).

The spelling of 1420800018 in words is "one billion, four hundred twenty million, eight hundred thousand, eighteen".

Divisors: 1 2 3 6 11 22 33 66 3067 6134 7019 9201 14038 18402 21057 33737 42114 67474 77209 101211 154418 202422 231627 463254 21527273 43054546 64581819 129163638 236800003 473600006 710400009 1420800018