Search a number
-
+
20301002001 = 337179600071
BaseRepresentation
bin10010111010000010…
…001011010100010001
31221101210220202101000
4102322002023110101
5313034024031001
613154240532213
71316035445520
oct227202132421
957353822330
1020301002001
118678428305
123b26921069
131bb6b66827
14da827a4b7
157dc3c6a86
hex4ba08b511

20301002001 has 32 divisors (see below), whose sum is σ = 34564147200. Its totient is φ = 11535745680.

The previous prime is 20301001951. The next prime is 20301002039. The reversal of 20301002001 is 10020010302.

It is a happy number.

It is not a de Polignac number, because 20301002001 - 27 = 20301001873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (20301001001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 266205 + ... + 333866.

It is an arithmetic number, because the mean of its divisors is an integer number (1080129600).

Almost surely, 220301002001 is an apocalyptic number.

20301002001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20301002001 is a deficient number, since it is larger than the sum of its proper divisors (14263145199).

20301002001 is a wasteful number, since it uses less digits than its factorization.

20301002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600266 (or 600260 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 20301002001 its reverse (10020010302), we get a palindrome (30321012303).

The spelling of 20301002001 in words is "twenty billion, three hundred one million, two thousand, one".

Divisors: 1 3 7 9 21 27 63 179 189 537 1253 1611 3759 4833 11277 33831 600071 1800213 4200497 5400639 12601491 16201917 37804473 107412709 113413419 322238127 751888963 966714381 2255666889 2900143143 6767000667 20301002001