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20211213032 = 2367178721101
BaseRepresentation
bin10010110100101011…
…101010001011101000
31221011112222000001122
4102310223222023220
5312343032304112
613141312234412
71313565322223
oct226453521350
957145860048
1020211213032
11863178054a
123b0083ba08
131ba138996a
14d9a3865ba
157d458c872
hex4b4aea2e8

20211213032 has 32 divisors (see below), whose sum is σ = 38484983520. Its totient is φ = 9948734400.

The previous prime is 20211213017. The next prime is 20211213089. The reversal of 20211213032 is 23031211202.

It is a self number, because there is not a number n which added to its sum of digits gives 20211213032.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 947282 + ... + 968382.

It is an arithmetic number, because the mean of its divisors is an integer number (1202655735).

Almost surely, 220211213032 is an apocalyptic number.

It is an amenable number.

20211213032 is a deficient number, since it is larger than the sum of its proper divisors (18273770488).

20211213032 is a wasteful number, since it uses less digits than its factorization.

20211213032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22961 (or 22957 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20211213032 its reverse (23031211202), we get a palindrome (43242424234).

The spelling of 20211213032 in words is "twenty billion, two hundred eleven million, two hundred thirteen thousand, thirty-two".

Divisors: 1 2 4 8 67 134 268 536 1787 3574 7148 14296 21101 42202 84404 119729 168808 239458 478916 957832 1413767 2827534 5655068 11310136 37707487 75414974 150829948 301659896 2526401629 5052803258 10105606516 20211213032