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2122430153 = 12291726957
BaseRepresentation
bin111111010000001…
…1011011011001001
312110220201121211012
41332200123123021
513321320231103
6550335013305
7103411234004
oct17640333311
95426647735
102122430153
1199a069208
124b296a235
1327a94243c
14161c4853b
15c64e82d8
hex7e81b6c9

2122430153 has 4 divisors (see below), whose sum is σ = 2124158340. Its totient is φ = 2120701968.

The previous prime is 2122430137. The next prime is 2122430171. The reversal of 2122430153 is 3510342212.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2111586304 + 10843849 = 45952^2 + 3293^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122430153 - 24 = 2122430137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2122430113) 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 3 ways as a sum of consecutive naturals, for example, 862250 + ... + 864707.

It is an arithmetic number, because the mean of its divisors is an integer number (531039585).

Almost surely, 22122430153 is an apocalyptic number.

It is an amenable number.

2122430153 is a deficient number, since it is larger than the sum of its proper divisors (1728187).

2122430153 is a wasteful number, since it uses less digits than its factorization.

2122430153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728186.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2122430153 is about 46069.8399497980. The cubic root of 2122430153 is about 1285.1223274260.

Adding to 2122430153 its reverse (3510342212), we get a palindrome (5632772365).

The spelling of 2122430153 in words is "two billion, one hundred twenty-two million, four hundred thirty thousand, one hundred fifty-three".

Divisors: 1 1229 1726957 2122430153