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1421238371 = 7673030359
BaseRepresentation
bin101010010110110…
…0110000001100011
310200001022101112012
41110231212001203
510402314111441
6353010023135
750135220050
oct12455460143
93601271465
101421238371
1166a285473
12337b77aab
131985a6767
14d6a80027
1584b8c9eb
hex54b66063

1421238371 has 8 divisors (see below), whose sum is σ = 1648515840. Its totient is φ = 1200021768.

The previous prime is 1421238353. The next prime is 1421238439. The reversal of 1421238371 is 1738321241.

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

It is a cyclic number.

It is not a de Polignac number, because 1421238371 - 214 = 1421221987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1421238271) 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, 1514711 + ... + 1515648.

It is an arithmetic number, because the mean of its divisors is an integer number (206064480).

Almost surely, 21421238371 is an apocalyptic number.

1421238371 is a deficient number, since it is larger than the sum of its proper divisors (227277469).

1421238371 is an equidigital number, since it uses as much as digits as its factorization.

1421238371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3030433.

The product of its digits is 8064, while the sum is 32.

The square root of 1421238371 is about 37699.3152590336. The cubic root of 1421238371 is about 1124.3175109194.

The spelling of 1421238371 in words is "one billion, four hundred twenty-one million, two hundred thirty-eight thousand, three hundred seventy-one".

Divisors: 1 7 67 469 3030359 21212513 203034053 1421238371