Search a number
-
+
20200111001008 = 242371773121211
BaseRepresentation
bin1001001011111001101000…
…11100001100110110110000
32122112010000110121121220121
410211330310130030312300
510121424311404013013
6110543445231220024
74153260403326661
oct445746434146660
978463013547817
1020200111001008
116488901053a04
122322b00377614
13b36b295c8a83
144db994d95368
152506b7e3458d
hex125f3470cdb0

20200111001008 has 40 divisors (see below), whose sum is σ = 41414557084416. Its totient is φ = 9524853307200.

The previous prime is 20200111000999. The next prime is 20200111001009. The reversal of 20200111001008 is 80010011100202.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 20200111000982 and 20200111001000.

It is not an unprimeable number, because it can be changed into a prime (20200111001009) 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, 386534478 + ... + 386586733.

Almost surely, 220200111001008 is an apocalyptic number.

It is an amenable number.

20200111001008 is an abundant number, since it is smaller than the sum of its proper divisors (21214446083408).

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

20200111001008 is a wasteful number, since it uses less digits than its factorization.

20200111001008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773121313 (or 773121307 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

The spelling of 20200111001008 in words is "twenty trillion, two hundred billion, one hundred eleven million, one thousand, eight".

Divisors: 1 2 4 8 16 23 46 71 92 142 184 284 368 568 1136 1633 3266 6532 13064 26128 773121211 1546242422 3092484844 6184969688 12369939376 17781787853 35563575706 54891605981 71127151412 109783211962 142254302824 219566423924 284508605648 439132847848 878265695696 1262506937563 2525013875126 5050027750252 10100055500504 20200111001008