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3121060465 = 52292725817
BaseRepresentation
bin1011101000000111…
…1001101001110001
322001111211022002001
42322001321221301
522342442413330
61233411054001
7140225401435
oct27201715161
98044738061
103121060465
111361836a16
127312a1301
133a97c0053
1421871a9c5
151340089ca
hexba079a71

3121060465 has 8 divisors (see below), whose sum is σ = 3761628840. Its totient is φ = 2485944192.

The previous prime is 3121060451. The next prime is 3121060477. The reversal of 3121060465 is 5640601213.

3121060465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2130007104 + 991053361 = 46152^2 + 31481^2 .

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 3121060465 - 27 = 3121060337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1361764 + ... + 1364053.

It is an arithmetic number, because the mean of its divisors is an integer number (470203605).

Almost surely, 23121060465 is an apocalyptic number.

It is an amenable number.

3121060465 is a deficient number, since it is larger than the sum of its proper divisors (640568375).

3121060465 is a wasteful number, since it uses less digits than its factorization.

3121060465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2726051.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 3121060465 is about 55866.4520530882. The cubic root of 3121060465 is about 1461.3942496820.

Adding to 3121060465 its reverse (5640601213), we get a palindrome (8761661678).

The spelling of 3121060465 in words is "three billion, one hundred twenty-one million, sixty thousand, four hundred sixty-five".

Divisors: 1 5 229 1145 2725817 13629085 624212093 3121060465