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20544331202 = 210272165601
BaseRepresentation
bin10011001000100010…
…011001110111000010
31222000202210011021122
4103020202121313002
5314033322044302
613234332152242
71325051635223
oct231042316702
958022704248
1020544331202
11879281511a
123b94308682
131c253b1ac5
14dcc6db24a
1580393e3a2
hex4c8899dc2

20544331202 has 4 divisors (see below), whose sum is σ = 30816496806. Its totient is φ = 10272165600.

The previous prime is 20544331201. The next prime is 20544331211. The reversal of 20544331202 is 20213344502.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11612002081 + 8932329121 = 107759^2 + 94511^2 .

It is not an unprimeable number, because it can be changed into a prime (20544331201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5136082799 + ... + 5136082802.

Almost surely, 220544331202 is an apocalyptic number.

20544331202 is a deficient number, since it is larger than the sum of its proper divisors (10272165604).

20544331202 is a wasteful number, since it uses less digits than its factorization.

20544331202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10272165603.

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 20544331202 its reverse (20213344502), we get a palindrome (40757675704).

The spelling of 20544331202 in words is "twenty billion, five hundred forty-four million, three hundred thirty-one thousand, two hundred two".

Divisors: 1 2 10272165601 20544331202