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220013031212312 = 23132207219584543
BaseRepresentation
bin110010000001100111000110…
…100100100100010100011000
31001212000001002102121201221012
4302001213012210210110120
5212314143141442243222
62055532331411433052
764225263004662152
oct6201470644442430
91055001072551835
10220013031212312
1164115003434038
1220813bbabb5788
13959c1a8252320
143c4898a813ad2
151a6809ce901e2
hexc819c6924518

220013031212312 has 32 divisors (see below), whose sum is σ = 444259141361280. Its totient is φ = 101544005291520.

The previous prime is 220013031212297. The next prime is 220013031212339. The reversal of 220013031212312 is 213212130310022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18162713 + ... + 27747255.

It is an arithmetic number, because the mean of its divisors is an integer number (13883098167540).

Almost surely, 2220013031212312 is an apocalyptic number.

It is an amenable number.

220013031212312 is an abundant number, since it is smaller than the sum of its proper divisors (224246110148968).

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

220013031212312 is a wasteful number, since it uses less digits than its factorization.

220013031212312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9805283 (or 9805279 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 220013031212312 its reverse (213212130310022), we get a palindrome (433225161522334).

The spelling of 220013031212312 in words is "two hundred twenty trillion, thirteen billion, thirty-one million, two hundred twelve thousand, three hundred twelve".

Divisors: 1 2 4 8 13 26 52 104 220721 441442 882884 1765768 2869373 5738746 9584543 11477492 19169086 22954984 38338172 76676344 124599059 249198118 498396236 996792472 2115509915503 4231019831006 8462039662012 16924079324024 27501628901539 55003257803078 110006515606156 220013031212312