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1420107238 = 21164550329
BaseRepresentation
bin101010010100101…
…0001110111100110
310122222011220220101
41110221101313212
510402021412423
6352525454314
750122466224
oct12451216746
93588156811
101420107238
11669682650
1233771139a
1319829b954
14d6867b14
1584a177ad
hex54a51de6

1420107238 has 8 divisors (see below), whose sum is σ = 2323811880. Its totient is φ = 645503280.

The previous prime is 1420107217. The next prime is 1420107251. The reversal of 1420107238 is 8327010241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32275143 + ... + 32275186.

It is an arithmetic number, because the mean of its divisors is an integer number (290476485).

Almost surely, 21420107238 is an apocalyptic number.

1420107238 is a deficient number, since it is larger than the sum of its proper divisors (903704642).

1420107238 is a wasteful number, since it uses less digits than its factorization.

1420107238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64550342.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 1420107238 is about 37684.3102364897. The cubic root of 1420107238 is about 1124.0191583932.

Adding to 1420107238 its reverse (8327010241), we get a palindrome (9747117479).

The spelling of 1420107238 in words is "one billion, four hundred twenty million, one hundred seven thousand, two hundred thirty-eight".

Divisors: 1 2 11 22 64550329 129100658 710053619 1420107238