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2152151320 = 235114891253
BaseRepresentation
bin1000000001000111…
…0011100100011000
312112222122121121011
42000101303210120
513401422320240
6553320023304
7104221661434
oct20021634430
95488577534
102152151320
11a04919160
12500901b34
13283b4a527
14165b839c4
15c8e196ea
hex80473918

2152151320 has 32 divisors (see below), whose sum is σ = 5282554320. Its totient is φ = 782600320.

The previous prime is 2152151279. The next prime is 2152151321. The reversal of 2152151320 is 231512512.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 2152151291 and 2152151300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152151321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2445187 + ... + 2446066.

Almost surely, 22152151320 is an apocalyptic number.

2152151320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2152151320 is an abundant number, since it is smaller than the sum of its proper divisors (3130403000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2152151320 is a wasteful number, since it uses less digits than its factorization.

2152151320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4891275 (or 4891271 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 2152151320 is about 46391.2849574141. The cubic root of 2152151320 is about 1291.0932222665.

Adding to 2152151320 its reverse (231512512), we get a palindrome (2383663832).

The spelling of 2152151320 in words is "two billion, one hundred fifty-two million, one hundred fifty-one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 4891253 9782506 19565012 24456265 39130024 48912530 53803783 97825060 107607566 195650120 215215132 269018915 430430264 538037830 1076075660 2152151320