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20070677232 = 24333773103167
BaseRepresentation
bin10010101100010011…
…100011101011110000
31220210202112001012000
4102230103203223300
5312101043132412
613115332134000
71310240640654
oct225423435360
956722461160
1020070677232
11856a412961
123a81767300
131b7b222798
14d85842a64
157c707c4dc
hex4ac4e3af0

20070677232 has 320 divisors, whose sum is σ = 60922767360. Its totient is φ = 6319835136.

The previous prime is 20070677191. The next prime is 20070677257. The reversal of 20070677232 is 23277607002.

It is a super-2 number, since 2×200706772322 (a number of 21 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 120183613 + ... + 120183779.

It is an arithmetic number, because the mean of its divisors is an integer number (190383648).

Almost surely, 220070677232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20070677232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30461383680).

20070677232 is an abundant number, since it is smaller than the sum of its proper divisors (40852090128).

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

20070677232 is a wasteful number, since it uses less digits than its factorization.

20070677232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397 (or 385 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 36.

The spelling of 20070677232 in words is "twenty billion, seventy million, six hundred seventy-seven thousand, two hundred thirty-two".