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1420220430 = 2325157100511
BaseRepresentation
bin101010010100110…
…1101100000001110
310122222101200011200
41110221231200032
510402034023210
6352532130330
750123450226
oct12451554016
93588350150
101420220430
1166974a6a2
123377669a6
1319830b325
14d6897086
1584a3b0c0
hex54a6d80e

1420220430 has 48 divisors (see below), whose sum is σ = 3716129664. Its totient is φ = 376309440.

The previous prime is 1420220411. The next prime is 1420220441. The reversal of 1420220430 is 340220241.

1420220430 is a `hidden beast` number, since 14 + 2 + 0 + 220 + 430 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36126 + ... + 64385.

It is an arithmetic number, because the mean of its divisors is an integer number (77419368).

Almost surely, 21420220430 is an apocalyptic number.

1420220430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1420220430 is an abundant number, since it is smaller than the sum of its proper divisors (2295909234).

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

1420220430 is a wasteful number, since it uses less digits than its factorization.

1420220430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100681 (or 100678 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1420220430 is about 37685.8120517523. The cubic root of 1420220430 is about 1124.0490215361.

Adding to 1420220430 its reverse (340220241), we get a palindrome (1760440671).

The spelling of 1420220430 in words is "one billion, four hundred twenty million, two hundred twenty thousand, four hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 157 314 471 785 942 1413 1570 2355 2826 4710 7065 14130 100511 201022 301533 502555 603066 904599 1005110 1507665 1809198 3015330 4522995 9045990 15780227 31560454 47340681 78901135 94681362 142022043 157802270 236703405 284044086 473406810 710110215 1420220430