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20013112244 = 2211355278011
BaseRepresentation
bin10010101000110111…
…111101101110110100
31220122202012102212102
4102220313331232310
5311441324042434
613105514241232
71305641435006
oct225067755664
956582172772
1020013112244
11853a975494
123a66426218
131b6c318c68
14d7bd3a376
157c1eab07e
hex4a8dfdbb4

20013112244 has 24 divisors (see below), whose sum is σ = 35343688128. Its totient is φ = 9914970240.

The previous prime is 20013112237. The next prime is 20013112271. The reversal of 20013112244 is 44221131002.

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, 2494199 + ... + 2502209.

It is an arithmetic number, because the mean of its divisors is an integer number (1472653672).

Almost surely, 220013112244 is an apocalyptic number.

It is an amenable number.

20013112244 is a deficient number, since it is larger than the sum of its proper divisors (15330575884).

20013112244 is a wasteful number, since it uses less digits than its factorization.

20013112244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13655 (or 13653 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 20013112244 its reverse (44221131002), we get a palindrome (64234243246).

The spelling of 20013112244 in words is "twenty billion, thirteen million, one hundred twelve thousand, two hundred forty-four".

Divisors: 1 2 4 113 226 452 5527 8011 11054 16022 22108 32044 624551 905243 1249102 1810486 2498204 3620972 44276797 88553594 177107188 5003278061 10006556122 20013112244