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2154311210 = 25318538147
BaseRepresentation
bin1000000001101000…
…0010111000101010
312120010201100102002
42000122002320222
513403000424320
6553434211002
7104246225462
oct20032027052
95503640362
102154311210
11a06063997
12501583a62
1328442567c
14166186ba2
15c91e4675
hex80682e2a

2154311210 has 32 divisors (see below), whose sum is σ = 4008033792. Its totient is φ = 832847040.

The previous prime is 2154311171. The next prime is 2154311251. The reversal of 2154311210 is 121134512.

2154311210 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 260357 + ... + 268503.

It is an arithmetic number, because the mean of its divisors is an integer number (125251056).

Almost surely, 22154311210 is an apocalyptic number.

2154311210 is a deficient number, since it is larger than the sum of its proper divisors (1853722582).

2154311210 is a wasteful number, since it uses less digits than its factorization.

2154311210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9038.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 2154311210 is about 46414.5581687470. The cubic root of 2154311210 is about 1291.5249897653.

Adding to 2154311210 its reverse (121134512), we get a palindrome (2275445722).

The spelling of 2154311210 in words is "two billion, one hundred fifty-four million, three hundred eleven thousand, two hundred ten".

Divisors: 1 2 5 10 31 62 155 310 853 1706 4265 8147 8530 16294 26443 40735 52886 81470 132215 252557 264430 505114 1262785 2525570 6949391 13898782 34746955 69493910 215431121 430862242 1077155605 2154311210