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20314236672 = 28332938981
BaseRepresentation
bin10010111010110100…
…101010011100000000
31221102201211010221000
4102322310222130000
5313100421033142
613155432332000
71316256106542
oct227264523400
957381733830
1020314236672
118684947754
123b2b244000
131bb981b7b2
14da9d23692
157dd63d14c
hex4bad2a700

20314236672 has 72 divisors (see below), whose sum is σ = 60072792080. Its totient is φ = 6771409920.

The previous prime is 20314236671. The next prime is 20314236713. The reversal of 20314236672 is 27663241302.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20314236671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1462579 + ... + 1476402.

Almost surely, 220314236672 is an apocalyptic number.

It is an amenable number.

20314236672 is an abundant number, since it is smaller than the sum of its proper divisors (39758555408).

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

20314236672 is an equidigital number, since it uses as much as digits as its factorization.

20314236672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2939006 (or 2938986 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

Adding to 20314236672 its reverse (27663241302), we get a palindrome (47977477974).

The spelling of 20314236672 in words is "twenty billion, three hundred fourteen million, two hundred thirty-six thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 96 108 128 144 192 216 256 288 384 432 576 768 864 1152 1728 2304 3456 6912 2938981 5877962 8816943 11755924 17633886 23511848 26450829 35267772 47023696 52901658 70535544 79352487 94047392 105803316 141071088 158704974 188094784 211606632 282142176 317409948 376189568 423213264 564284352 634819896 752379136 846426528 1128568704 1269639792 1692853056 2257137408 2539279584 3385706112 5078559168 6771412224 10157118336 20314236672