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2152015103 = 7307430729
BaseRepresentation
bin1000000001000101…
…0010010011111111
312112222101200202002
42000101102103333
513401403440403
6553313052515
7104220553340
oct20021222377
95488350662
102152015103
11a04835887
1250085713b
13283b00524
14165b4a0c7
15c8dde188
hex804524ff

2152015103 has 4 divisors (see below), whose sum is σ = 2459445840. Its totient is φ = 1844584368.

The previous prime is 2152015081. The next prime is 2152015111. The reversal of 2152015103 is 3015102512.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2152015103 - 26 = 2152015039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152015403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153715358 + ... + 153715371.

It is an arithmetic number, because the mean of its divisors is an integer number (614861460).

Almost surely, 22152015103 is an apocalyptic number.

2152015103 is a deficient number, since it is larger than the sum of its proper divisors (307430737).

2152015103 is an equidigital number, since it uses as much as digits as its factorization.

2152015103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307430736.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 2152015103 is about 46389.8168028286. The cubic root of 2152015103 is about 1291.0659824601.

Adding to 2152015103 its reverse (3015102512), we get a palindrome (5167117615).

The spelling of 2152015103 in words is "two billion, one hundred fifty-two million, fifteen thousand, one hundred three".

Divisors: 1 7 307430729 2152015103