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2159496061 = 19910851739
BaseRepresentation
bin1000000010110111…
…0100101101111101
312120111110202200121
42000231310231331
513410312333221
6554141254541
7104341261612
oct20055645575
95514422617
102159496061
11a08a85398
12503264451
1328551c628
14166b36509
15c98baa41
hex80b74b7d

2159496061 has 4 divisors (see below), whose sum is σ = 2170348000. Its totient is φ = 2148644124.

The previous prime is 2159496041. The next prime is 2159496113. The reversal of 2159496061 is 1606949512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2159496061 - 25 = 2159496029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2159495999 and 2159496017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2159496011) 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, 5425671 + ... + 5426068.

It is an arithmetic number, because the mean of its divisors is an integer number (542587000).

Almost surely, 22159496061 is an apocalyptic number.

It is an amenable number.

2159496061 is a deficient number, since it is larger than the sum of its proper divisors (10851939).

2159496061 is a wasteful number, since it uses less digits than its factorization.

2159496061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10851938.

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 2159496061 is about 46470.3783178058. The cubic root of 2159496061 is about 1292.5602780832.

The spelling of 2159496061 in words is "two billion, one hundred fifty-nine million, four hundred ninety-six thousand, sixty-one".

Divisors: 1 199 10851739 2159496061