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20211132310 = 2531143345497
BaseRepresentation
bin10010110100101011…
…010110011110010110
31221011112210220022221
4102310223112132112
5312343022213220
613141310412554
71313564534665
oct226453263626
957145726287
1020211132310
118631725936
123b0080115a
131ba135bcb5
14d9a364ddc
157d45739aa
hex4b4ad6796

20211132310 has 32 divisors (see below), whose sum is σ = 37580620032. Its totient is φ = 7818032640.

The previous prime is 20211132301. The next prime is 20211132311. The reversal of 20211132310 is 1323111202.

It is a super-2 number, since 2×202111323102 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211132311) 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 15 ways as a sum of consecutive naturals, for example, 421482 + ... + 466978.

It is an arithmetic number, because the mean of its divisors is an integer number (1174394376).

Almost surely, 220211132310 is an apocalyptic number.

20211132310 is a deficient number, since it is larger than the sum of its proper divisors (17369487722).

20211132310 is a wasteful number, since it uses less digits than its factorization.

20211132310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46968.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20211132310 its reverse (1323111202), we get a palindrome (21534243512).

The spelling of 20211132310 in words is "twenty billion, two hundred eleven million, one hundred thirty-two thousand, three hundred ten".

Divisors: 1 2 5 10 31 62 155 310 1433 2866 7165 14330 44423 45497 88846 90994 222115 227485 444230 454970 1410407 2820814 7052035 14104070 65197201 130394402 325986005 651972010 2021113231 4042226462 10105566155 20211132310