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2131157467 = 59307117659
BaseRepresentation
bin111111100000110…
…1110000111011011
312111112011000110001
41333001232013123
513331034014332
6551250033431
7103545353035
oct17701560733
95445130401
102131157467
119a3a8a16a
124b5878877
1327c6a992a
1416307ac55
15c716e0e7
hex7f06e1db

2131157467 has 8 divisors (see below), whose sum is σ = 2174356800. Its totient is φ = 2088194184.

The previous prime is 2131157449. The next prime is 2131157489. The reversal of 2131157467 is 7647511312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2131157467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2131152467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40717 + ... + 76942.

It is an arithmetic number, because the mean of its divisors is an integer number (271794600).

Almost surely, 22131157467 is an apocalyptic number.

2131157467 is a deficient number, since it is larger than the sum of its proper divisors (43199333).

2131157467 is a wasteful number, since it uses less digits than its factorization.

2131157467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118025.

The product of its digits is 35280, while the sum is 37.

The square root of 2131157467 is about 46164.4610820921. The cubic root of 2131157467 is about 1286.8813689592.

Adding to 2131157467 its reverse (7647511312), we get a palindrome (9778668779).

The spelling of 2131157467 in words is "two billion, one hundred thirty-one million, one hundred fifty-seven thousand, four hundred sixty-seven".

Divisors: 1 59 307 18113 117659 6941881 36121313 2131157467