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1420161371 = 12792912037
BaseRepresentation
bin101010010100101…
…1111000101011011
310122222021200011022
41110221133011123
510402030130441
6352530553055
750123113106
oct12451370533
93588250138
101420161371
1166970a292
1233773878b
131982ba495
14d687d73d
1584a2884b
hex54a5f15b

1420161371 has 8 divisors (see below), whose sum is σ = 1433003520. Its totient is φ = 1407345408.

The previous prime is 1420161361. The next prime is 1420161389. The reversal of 1420161371 is 1731610241.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1420161371 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1420161371.

It is not an unprimeable number, because it can be changed into a prime (1420161361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111965 + ... + 124001.

It is an arithmetic number, because the mean of its divisors is an integer number (179125440).

Almost surely, 21420161371 is an apocalyptic number.

1420161371 is a deficient number, since it is larger than the sum of its proper divisors (12842149).

1420161371 is a wasteful number, since it uses less digits than its factorization.

1420161371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13093.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 1420161371 is about 37685.0284728564. The cubic root of 1420161371 is about 1124.0334403559.

The spelling of 1420161371 in words is "one billion, four hundred twenty million, one hundred sixty-one thousand, three hundred seventy-one".

Divisors: 1 127 929 12037 117983 1528699 11182373 1420161371