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20010928192 = 267322319207
BaseRepresentation
bin10010101000101111…
…101000100001000000
31220122121002110220121
4102220233220201000
5311440244200232
613105355350024
71305614040343
oct225057504100
956577073817
1020010928192
118539713592
123a65752314
131b6ba32b18
14d7b92c45a
157c1bc8d97
hex4a8be8840

20010928192 has 56 divisors (see below), whose sum is σ = 40435759616. Its totient is φ = 9823638528.

The previous prime is 20010928181. The next prime is 20010928219. The reversal of 20010928192 is 29182901002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1032253 + ... + 1051459.

It is an arithmetic number, because the mean of its divisors is an integer number (722067136).

Almost surely, 220010928192 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 20010928192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20217879808).

20010928192 is an abundant number, since it is smaller than the sum of its proper divisors (20424831424).

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

20010928192 is a wasteful number, since it uses less digits than its factorization.

20010928192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19515 (or 19505 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 34.

The spelling of 20010928192 in words is "twenty billion, ten million, nine hundred twenty-eight thousand, one hundred ninety-two".

Divisors: 1 2 4 8 16 32 64 73 146 223 292 446 584 892 1168 1784 2336 3568 4672 7136 14272 16279 19207 32558 38414 65116 76828 130232 153656 260464 307312 520928 614624 1041856 1229248 1402111 2804222 4283161 5608444 8566322 11216888 17132644 22433776 34265288 44867552 68530576 89735104 137061152 274122304 312670753 625341506 1250683012 2501366024 5002732048 10005464096 20010928192