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20000231112122 = 2171024335742701
BaseRepresentation
bin1001000110000101010101…
…01010111011110110111010
32121211000002111100012212222
410203002222222323312322
510110140433131041442
6110311551311404042
74132653241316102
oct443025252736672
977730074305788
1020000231112122
11641106106aa98
1222b0218b23622
13b21024142281
144d2032c1c202
1524a3ba2d88d2
hex1230aaabbdba

20000231112122 has 16 divisors (see below), whose sum is σ = 31765388580072. Its totient is φ = 9411779942400.

The previous prime is 20000231112053. The next prime is 20000231112203. The reversal of 20000231112122 is 22121113200002.

It can be written as a sum of positive squares in 4 ways, for example, as 15103397643481 + 4896833468641 = 3886309^2 + 2212879^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 20000231112122.

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, 611372 + ... + 6354072.

Almost surely, 220000231112122 is an apocalyptic number.

20000231112122 is a deficient number, since it is larger than the sum of its proper divisors (11765157467950).

20000231112122 is a wasteful number, since it uses less digits than its factorization.

20000231112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5845153.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 20000231112122 its reverse (22121113200002), we get a palindrome (42121344312124).

The spelling of 20000231112122 in words is "twenty trillion, two hundred thirty-one million, one hundred twelve thousand, one hundred twenty-two".

Divisors: 1 2 17 34 102433 204866 1741361 3482722 5742701 11485402 97625917 195251834 588242091533 1176484183066 10000115556061 20000231112122