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1515042000145 = 5378189416217
BaseRepresentation
bin10110000010111111100…
…010100100110100010001
312100211120212210220210001
4112002333202210310101
5144310301223001040
63120000052010001
7214313103343252
oct26027742446421
95324525726701
101515042000145
11534586791773
12205760600901
13acb388796cb
14534852a4b29
1529622c0859a
hex160bf8a4d11

1515042000145 has 8 divisors (see below), whose sum is σ = 1867186897704. Its totient is φ = 1179275935104.

The previous prime is 1515042000137. The next prime is 1515042000209. The reversal of 1515042000145 is 5410002405151.

It can be written as a sum of positive squares in 4 ways, for example, as 65327270464 + 1449714729681 = 255592^2 + 1204041^2 .

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 1515042000145 - 23 = 1515042000137 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4094707924 + ... + 4094708293.

It is an arithmetic number, because the mean of its divisors is an integer number (233398362213).

Almost surely, 21515042000145 is an apocalyptic number.

It is an amenable number.

1515042000145 is a deficient number, since it is larger than the sum of its proper divisors (352144897559).

1515042000145 is an equidigital number, since it uses as much as digits as its factorization.

1515042000145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8189416259.

The product of its (nonzero) digits is 4000, while the sum is 28.

Adding to 1515042000145 its reverse (5410002405151), we get a palindrome (6925044405296).

The spelling of 1515042000145 in words is "one trillion, five hundred fifteen billion, forty-two million, one hundred forty-five", and thus it is an aban number.

Divisors: 1 5 37 185 8189416217 40947081085 303008400029 1515042000145