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20344306235031 = 322398281672633
BaseRepresentation
bin1001010000000110001110…
…01001010111011010010111
32200000220012200101110211200
410220003013021113122113
510131310114344010111
6111134013435403543
74166553605520162
oct450030711273227
980026180343750
1020344306235031
116533a765494a9
122346a42bb35b3
13b475c938835c
14504953838ad9
152543070e3256
hex1280c7257697

20344306235031 has 12 divisors (see below), whose sum is σ = 30663881861808. Its totient is φ = 12973180787424.

The previous prime is 20344306235023. The next prime is 20344306235087. The reversal of 20344306235031 is 13053260344302.

20344306235031 is a `hidden beast` number, since 2 + 0 + 344 + 306 + 2 + 3 + 5 + 0 + 3 + 1 = 666.

It is not a de Polignac number, because 20344306235031 - 23 = 20344306235023 is a prime.

It is a super-2 number, since 2×203443062350312 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20344306735031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49140836110 + ... + 49140836523.

It is an arithmetic number, because the mean of its divisors is an integer number (2555323488484).

Almost surely, 220344306235031 is an apocalyptic number.

20344306235031 is a deficient number, since it is larger than the sum of its proper divisors (10319575626777).

20344306235031 is a wasteful number, since it uses less digits than its factorization.

20344306235031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98281672662 (or 98281672659 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 36.

Adding to 20344306235031 its reverse (13053260344302), we get a palindrome (33397566579333).

The spelling of 20344306235031 in words is "twenty trillion, three hundred forty-four billion, three hundred six million, two hundred thirty-five thousand, thirty-one".

Divisors: 1 3 9 23 69 207 98281672633 294845017899 884535053697 2260478470559 6781435411677 20344306235031