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2152040311 = 106312131669
BaseRepresentation
bin1000000001000101…
…1000011101110111
312112222102222022201
42000101120131313
513401410242221
6553313405331
7104221020001
oct20021303567
95488388281
102152040311
11a04852813
12500869847
13283b0bb45
14165b55371
15c8de6891
hex80458777

2152040311 has 8 divisors (see below), whose sum is σ = 2157132320. Its totient is φ = 2146956192.

The previous prime is 2152040309. The next prime is 2152040321. The reversal of 2152040311 is 1130402512.

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 2152040311 - 21 = 2152040309 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 (2152040321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1288585 + ... + 1290253.

It is an arithmetic number, because the mean of its divisors is an integer number (269641540).

Almost surely, 22152040311 is an apocalyptic number.

2152040311 is a deficient number, since it is larger than the sum of its proper divisors (5092009).

2152040311 is a wasteful number, since it uses less digits than its factorization.

2152040311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3945.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 2152040311 is about 46390.0884995922. The cubic root of 2152040311 is about 1291.0710234818.

Adding to 2152040311 its reverse (1130402512), we get a palindrome (3282442823).

The spelling of 2152040311 in words is "two billion, one hundred fifty-two million, forty thousand, three hundred eleven".

Divisors: 1 1063 1213 1669 1289419 1774147 2024497 2152040311