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1420203250 = 2535680813
BaseRepresentation
bin101010010100110…
…1001010011110010
310122222100210121101
41110221221103302
510402033001000
6352531515014
750123346154
oct12451512362
93588323541
101420203250
116697387a4
12337758a6a
1319830356b
14d6890ad4
1584a35e6a
hex54a694f2

1420203250 has 16 divisors (see below), whose sum is σ = 2658620952. Its totient is φ = 568081200.

The previous prime is 1420203181. The next prime is 1420203251. The reversal of 1420203250 is 523020241.

It can be written as a sum of positive squares in 4 ways, for example, as 913187961 + 507015289 = 30219^2 + 22517^2 .

It is not an unprimeable number, because it can be changed into a prime (1420203251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2840157 + ... + 2840656.

Almost surely, 21420203250 is an apocalyptic number.

1420203250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1420203250 is a deficient number, since it is larger than the sum of its proper divisors (1238417702).

1420203250 is an equidigital number, since it uses as much as digits as its factorization.

1420203250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5680830 (or 5680820 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 1420203250 is about 37685.5841138226. The cubic root of 1420203250 is about 1124.0444890847.

Adding to 1420203250 its reverse (523020241), we get a palindrome (1943223491).

The spelling of 1420203250 in words is "one billion, four hundred twenty million, two hundred three thousand, two hundred fifty".

Divisors: 1 2 5 10 25 50 125 250 5680813 11361626 28404065 56808130 142020325 284040650 710101625 1420203250