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20312202435 = 357193449547
BaseRepresentation
bin10010111010101100…
…111001110011000011
31221102120222210110220
4102322230321303003
5313044410434220
613155320554123
71316232605040
oct227254716303
957376883426
1020312202435
118683788368
123b2a622943
131bb92888c5
14da99541c7
157dd38a540
hex4bab39cc3

20312202435 has 16 divisors (see below), whose sum is σ = 37142313216. Its totient is φ = 9285578208.

The previous prime is 20312202433. The next prime is 20312202481. The reversal of 20312202435 is 53420221302.

It is not a de Polignac number, because 20312202435 - 21 = 20312202433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20312202433) 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, 96724669 + ... + 96724878.

It is an arithmetic number, because the mean of its divisors is an integer number (2321394576).

Almost surely, 220312202435 is an apocalyptic number.

20312202435 is a deficient number, since it is larger than the sum of its proper divisors (16830110781).

20312202435 is a wasteful number, since it uses less digits than its factorization.

20312202435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193449562.

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 20312202435 its reverse (53420221302), we get a palindrome (73732423737).

The spelling of 20312202435 in words is "twenty billion, three hundred twelve million, two hundred two thousand, four hundred thirty-five".

Divisors: 1 3 5 7 15 21 35 105 193449547 580348641 967247735 1354146829 2901743205 4062440487 6770734145 20312202435