Search a number
-
+
5812121405 = 51916085991
BaseRepresentation
bin1010110100110110…
…11110111100111101
3120000001112100200202
411122123132330331
543400400341110
62400421533245
7264013134236
oct53233367475
916001470622
105812121405
112512877922
121162574225
13718196abc
143d1ca408d
152403c50a5
hex15a6def3d

5812121405 has 8 divisors (see below), whose sum is σ = 7011062784. Its totient is φ = 4625352400.

The previous prime is 5812121401. The next prime is 5812121429. The reversal of 5812121405 is 5041212185.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5812121405 - 22 = 5812121401 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 (5812121401) 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, 3042041 + ... + 3043950.

It is an arithmetic number, because the mean of its divisors is an integer number (876382848).

Almost surely, 25812121405 is an apocalyptic number.

It is an amenable number.

5812121405 is a deficient number, since it is larger than the sum of its proper divisors (1198941379).

5812121405 is a wasteful number, since it uses less digits than its factorization.

5812121405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6086187.

The product of its (nonzero) digits is 3200, while the sum is 29.

The square root of 5812121405 is about 76237.2704456292. The cubic root of 5812121405 is about 1797.9525490209.

The spelling of 5812121405 in words is "five billion, eight hundred twelve million, one hundred twenty-one thousand, four hundred five".

Divisors: 1 5 191 955 6085991 30429955 1162424281 5812121405