Search a number
-
+
20300230471680 = 212345192341683
BaseRepresentation
bin1001001110110100001000…
…00001101011000000000000
32122212200102222001201010000
410213122010001223000000
510130044333000043210
6111101444103040000
74163433430643325
oct447320401530000
978780388051100
1020300230471680
11651730896a0a5
12233a3a2140000
13b433c3aa8503
14502771c34b4c
152530c78bcac0
hex12768406b000

20300230471680 has 2080 divisors, whose sum is σ = 82001194007040. Its totient is φ = 4778848419840.

The previous prime is 20300230471603. The next prime is 20300230471693. The reversal of 20300230471680 is 8617403200302.

It is a happy number.

20300230471680 is a `hidden beast` number, since 2 + 0 + 300 + 230 + 47 + 1 + 6 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 29722152619 + ... + 29722153301.

Almost surely, 220300230471680 is an apocalyptic number.

20300230471680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20300230471680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41000597003520).

20300230471680 is an abundant number, since it is smaller than the sum of its proper divisors (61700963535360).

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

20300230471680 is a wasteful number, since it uses less digits than its factorization.

20300230471680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807 (or 776 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

Adding to 20300230471680 its reverse (8617403200302), we get a palindrome (28917633671982).

The spelling of 20300230471680 in words is "twenty trillion, three hundred billion, two hundred thirty million, four hundred seventy-one thousand, six hundred eighty".