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20122123000 = 235372874589
BaseRepresentation
bin10010101111010111…
…110011101011111000
31220221100022202111211
4102233113303223320
5312202230414000
613124410532504
71311434136430
oct225727635370
956840282454
1020122123000
118596460921
123a96a37134
131b88a95c75
14d8c5d52c0
157cb8407ba
hex4af5f3af8

20122123000 has 64 divisors (see below), whose sum is σ = 53812324800. Its totient is φ = 6899011200.

The previous prime is 20122122989. The next prime is 20122123003. The reversal of 20122123000 is 32122102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122123003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1430295 + ... + 1444294.

It is an arithmetic number, because the mean of its divisors is an integer number (840817575).

Almost surely, 220122123000 is an apocalyptic number.

20122123000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20122123000 is an abundant number, since it is smaller than the sum of its proper divisors (33690201800).

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

20122123000 is a wasteful number, since it uses less digits than its factorization.

20122123000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2874617 (or 2874603 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20122123000 its reverse (32122102), we get a palindrome (20154245102).

The spelling of 20122123000 in words is "twenty billion, one hundred twenty-two million, one hundred twenty-three thousand".

Divisors: 1 2 4 5 7 8 10 14 20 25 28 35 40 50 56 70 100 125 140 175 200 250 280 350 500 700 875 1000 1400 1750 3500 7000 2874589 5749178 11498356 14372945 20122123 22996712 28745890 40244246 57491780 71864725 80488492 100610615 114983560 143729450 160976984 201221230 287458900 359323625 402442460 503053075 574917800 718647250 804884920 1006106150 1437294500 2012212300 2515265375 2874589000 4024424600 5030530750 10061061500 20122123000