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1420331412 = 223491241061
BaseRepresentation
bin101010010101000…
…1000100110010100
310122222121022102010
41110222020212110
510402101101122
6352534344220
750124421623
oct12452104624
93588538363
101420331412
11669816015
123377bb070
131983499b6
14d68c56ba
1584a5de0c
hex54a88994

1420331412 has 24 divisors (see below), whose sum is σ = 3320870112. Its totient is φ = 472477600.

The previous prime is 1420331383. The next prime is 1420331449. The reversal of 1420331412 is 2141330241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114639 + ... + 126422.

It is an arithmetic number, because the mean of its divisors is an integer number (138369588).

Almost surely, 21420331412 is an apocalyptic number.

1420331412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1420331412 is an abundant number, since it is smaller than the sum of its proper divisors (1900538700).

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

1420331412 is a wasteful number, since it uses less digits than its factorization.

1420331412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241559 (or 241557 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1420331412 is about 37687.2844869460. The cubic root of 1420331412 is about 1124.0783000801.

Adding to 1420331412 its reverse (2141330241), we get a palindrome (3561661653).

The spelling of 1420331412 in words is "one billion, four hundred twenty million, three hundred thirty-one thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 491 982 1473 1964 2946 5892 241061 482122 723183 964244 1446366 2892732 118360951 236721902 355082853 473443804 710165706 1420331412