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20312455305411 = 3217532504927279
BaseRepresentation
bin1001001111001010111001…
…01011101101100011000011
32122220211222221020121100200
410213211130223231203003
510130244402024233121
6111111225123420243
74164345402215103
oct447453453554303
978824887217320
1020312455305411
116521511525675
122340834224683
13b445c16b0939
145031b165b203
15253590c50a26
hex12795caed8c3

20312455305411 has 24 divisors (see below), whose sum is σ = 31652261110080. Its totient is φ = 12504596971776.

The previous prime is 20312455305407. The next prime is 20312455305421. The reversal of 20312455305411 is 11450355421302.

20312455305411 is a `hidden beast` number, since 2 + 0 + 31 + 2 + 4 + 55 + 30 + 541 + 1 = 666.

It is not a de Polignac number, because 20312455305411 - 22 = 20312455305407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20312455305421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1252455531 + ... + 1252471748.

It is an arithmetic number, because the mean of its divisors is an integer number (1318844212920).

Almost surely, 220312455305411 is an apocalyptic number.

20312455305411 is a deficient number, since it is larger than the sum of its proper divisors (11339805804669).

20312455305411 is a wasteful number, since it uses less digits than its factorization.

20312455305411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2504927355 (or 2504927352 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 20312455305411 in words is "twenty trillion, three hundred twelve billion, four hundred fifty-five million, three hundred five thousand, four hundred eleven".

Divisors: 1 3 9 17 51 53 153 159 477 901 2703 8109 2504927279 7514781837 22544345511 42583763743 127751291229 132761145787 383253873687 398283437361 1194850312083 2256939478379 6770818435137 20312455305411