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20310313313151 = 334421553130763
BaseRepresentation
bin1001001111000110111010…
…00000101010001101111111
32122220122110122201010101000
410213203131000222031333
510130231010202010101
6111110232405221343
74164241332454521
oct447433500521577
978818418633330
1020310313313151
116520612416134
122340336a01853
13b4433c9ac4b4
1450304ad9da11
152534b7b91486
hex1278dd02a37f

20310313313151 has 32 divisors (see below), whose sum is σ = 30102578922240. Its totient is φ = 13534258701600.

The previous prime is 20310313313149. The next prime is 20310313313159. The reversal of 20310313313151 is 15131331301302.

It is a happy number.

20310313313151 is a `hidden beast` number, since 2 + 0 + 3 + 1 + 0 + 313 + 31 + 315 + 1 = 666.

It is not a de Polignac number, because 20310313313151 - 21 = 20310313313149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20310313313159) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 660203496 + ... + 660234258.

It is an arithmetic number, because the mean of its divisors is an integer number (940705591320).

Almost surely, 220310313313151 is an apocalyptic number.

20310313313151 is a deficient number, since it is larger than the sum of its proper divisors (9792265609089).

20310313313151 is a wasteful number, since it uses less digits than its factorization.

20310313313151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40724 (or 40718 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 27.

Adding to 20310313313151 its reverse (15131331301302), we get a palindrome (35441644614453).

The spelling of 20310313313151 in words is "twenty trillion, three hundred ten billion, three hundred thirteen million, three hundred thirteen thousand, one hundred fifty-one".

Divisors: 1 3 9 27 4421 5531 13263 16593 30763 39789 49779 92289 119367 149337 276867 830601 24452551 73357653 136003223 170150153 220072959 408009669 510450459 660218877 1224029007 1531351377 3672087021 4594054131 752233826413 2256701479239 6770104437717 20310313313151