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31223401255053 = 327495609543731
BaseRepresentation
bin1110001100101110000111…
…01111011001000010001101
311002112221001111222210111200
413012113003233121002031
513043031011210130203
6150223455453540113
76401546663441520
oct706270357310215
9132487044883450
1031223401255053
119a4885201a457
123603379aa4639
13145647ac76a27
1479d3137b2bb7
153922d41349a3
hex1c65c3bd908d

31223401255053 has 12 divisors (see below), whose sum is σ = 51543392548128. Its totient is φ = 17841943574280.

The previous prime is 31223401255031. The next prime is 31223401255087. The reversal of 31223401255053 is 35055210432213.

31223401255053 is a `hidden beast` number, since 3 + 1 + 2 + 2 + 3 + 40 + 12 + 550 + 53 = 666.

It is not a de Polignac number, because 31223401255053 - 29 = 31223401254541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31223401254999 and 31223401255017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31223401250053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 247804771803 + ... + 247804771928.

It is an arithmetic number, because the mean of its divisors is an integer number (4295282712344).

Almost surely, 231223401255053 is an apocalyptic number.

It is an amenable number.

31223401255053 is a deficient number, since it is larger than the sum of its proper divisors (20319991293075).

31223401255053 is a wasteful number, since it uses less digits than its factorization.

31223401255053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495609543744 (or 495609543741 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

Adding to 31223401255053 its reverse (35055210432213), we get a palindrome (66278611687266).

The spelling of 31223401255053 in words is "thirty-one trillion, two hundred twenty-three billion, four hundred one million, two hundred fifty-five thousand, fifty-three".

Divisors: 1 3 7 9 21 63 495609543731 1486828631193 3469266806117 4460485893579 10407800418351 31223401255053