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1342185385 = 51031326029
BaseRepresentation
bin101000000000000…
…0001111110101001
310110112120002012211
41100000001332221
510222044413020
6341103405121
745155246632
oct12000017651
93415502184
101342185385
116296a0822
123155b37a1
131850b8448
14ca382889
157cc7485a
hex50001fa9

1342185385 has 8 divisors (see below), whose sum is σ = 1610840520. Its totient is φ = 1073602944.

The previous prime is 1342185329. The next prime is 1342185391. The reversal of 1342185385 is 5835812431.

It can be written as a sum of positive squares in 4 ways, for example, as 281961 + 1341903424 = 531^2 + 36632^2 .

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-1342185385 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38551 + ... + 64579.

It is an arithmetic number, because the mean of its divisors is an integer number (201355065).

Almost surely, 21342185385 is an apocalyptic number.

It is an amenable number.

1342185385 is a deficient number, since it is larger than the sum of its proper divisors (268655135).

1342185385 is a wasteful number, since it uses less digits than its factorization.

1342185385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36347.

The product of its digits is 115200, while the sum is 40.

The square root of 1342185385 is about 36635.8483592232. The cubic root of 1342185385 is about 1103.0727816610.

The spelling of 1342185385 in words is "one billion, three hundred forty-two million, one hundred eighty-five thousand, three hundred eighty-five".