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3102520145 = 517311177427
BaseRepresentation
bin1011100011101100…
…1011001101010001
322000012221100112112
42320323023031101
522323221121040
61231505435105
7136611662144
oct27073131521
98005840475
103102520145
11135232333a
1272703ba95
133a59cb14a
1421609205b
15132595365
hexb8ecb351

3102520145 has 16 divisors (see below), whose sum is σ = 4069191168. Its totient is φ = 2260657920.

The previous prime is 3102520129. The next prime is 3102520147. The reversal of 3102520145 is 5410252013.

It is not a de Polignac number, because 3102520145 - 24 = 3102520129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3102520145.

It is not an unprimeable number, because it can be changed into a prime (3102520147) 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 15 ways as a sum of consecutive naturals, for example, 586079 + ... + 591348.

It is an arithmetic number, because the mean of its divisors is an integer number (254324448).

Almost surely, 23102520145 is an apocalyptic number.

It is an amenable number.

3102520145 is a deficient number, since it is larger than the sum of its proper divisors (966671023).

3102520145 is a wasteful number, since it uses less digits than its factorization.

3102520145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177480.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 3102520145 is about 55700.2706007790. The cubic root of 3102520145 is about 1458.4947495307.

Adding to 3102520145 its reverse (5410252013), we get a palindrome (8512772158).

The spelling of 3102520145 in words is "three billion, one hundred two million, five hundred twenty thousand, one hundred forty-five".

Divisors: 1 5 17 31 85 155 527 2635 1177427 5887135 20016259 36500237 100081295 182501185 620504029 3102520145