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2142520151 = 3077339521
BaseRepresentation
bin111111110110100…
…0100001101010111
312112022112022010012
41333231010031113
513341441121101
6552333350435
7104044056302
oct17755041527
95468468105
102142520151
119aa440112
124b963841b
13281b57805
14164797b39
15c8165bbb
hex7fb44357

2142520151 has 8 divisors (see below), whose sum is σ = 2152657584. Its totient is φ = 2132403840.

The previous prime is 2142520147. The next prime is 2142520169. The reversal of 2142520151 is 1510252412.

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 2142520151 - 22 = 2142520147 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 (2142520181) 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, 220271 + ... + 229791.

It is an arithmetic number, because the mean of its divisors is an integer number (269082198).

Almost surely, 22142520151 is an apocalyptic number.

2142520151 is a deficient number, since it is larger than the sum of its proper divisors (10137433).

2142520151 is an equidigital number, since it uses as much as digits as its factorization.

2142520151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10561.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 2142520151 is about 46287.3649174372. The cubic root of 2142520151 is about 1289.1644030734.

Adding to 2142520151 its reverse (1510252412), we get a palindrome (3652772563).

The spelling of 2142520151 in words is "two billion, one hundred forty-two million, five hundred twenty thousand, one hundred fifty-one".

Divisors: 1 307 733 9521 225031 2922947 6978893 2142520151