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2031312313332 = 2232207653271729
BaseRepresentation
bin11101100011110011101…
…001100001101111110100
321012012011122111011210200
4131203303221201233310
5231240111423011312
64153101052320500
7266520545530221
oct35436351415764
97165148434720
102031312313332
11713524932295
12289822473130
13119723785c23
147045d302948
1537c8be2a0dc
hex1d8f3a61bf4

2031312313332 has 36 divisors (see below), whose sum is σ = 5134749749220. Its totient is φ = 677098351872.

The previous prime is 2031312313321. The next prime is 2031312313337. The reversal of 2031312313332 is 2333132131302.

2031312313332 is a `hidden beast` number, since 2 + 0 + 3 + 1 + 3 + 12 + 313 + 332 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 452560271076 + 1578752042256 = 672726^2 + 1256484^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 2031312313296 and 2031312313305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031312313337) 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, 7339644 + ... + 7611372.

Almost surely, 22031312313332 is an apocalyptic number.

It is an amenable number.

2031312313332 is an abundant number, since it is smaller than the sum of its proper divisors (3103437435888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2031312313332 is a wasteful number, since it uses less digits than its factorization.

2031312313332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479392 (or 479387 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 2031312313332 its reverse (2333132131302), we get a palindrome (4364444444634).

The spelling of 2031312313332 in words is "two trillion, thirty-one billion, three hundred twelve million, three hundred thirteen thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 36 207653 271729 415306 543458 622959 815187 830612 1086916 1245918 1630374 1868877 2445561 2491836 3260748 3737754 4891122 7475508 9782244 56425342037 112850684074 169276026111 225701368148 338552052222 507828078333 677104104444 1015656156666 2031312313332