Search a number
-
+
21030301320000 = 26354725036073
BaseRepresentation
bin1001100100000011111111…
…01000111100001101000000
32202110110212212011110211220
410302001333220330031000
510224030024114220000
6112421104223035040
74300250320524510
oct462017750741500
982413785143756
1021030301320000
11677899a922155
12243799143ba80
13b971c21b520b
14529c2cb47840
152670a68e61a0
hex13207fa3c340

21030301320000 has 280 divisors, whose sum is σ = 79464098298816. Its totient is φ = 4806925824000.

The previous prime is 21030301319999. The next prime is 21030301320023. The reversal of 21030301320000 is 2310303012.

It is a tau number, because it is divible by the number of its divisors (280).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 11678037 + ... + 13358036.

Almost surely, 221030301320000 is an apocalyptic number.

21030301320000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21030301320000 is an abundant number, since it is smaller than the sum of its proper divisors (58433796978816).

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

21030301320000 is an equidigital number, since it uses as much as digits as its factorization.

21030301320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25036115 (or 25036090 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 21030301320000 its reverse (2310303012), we get a palindrome (21032611623012).

The spelling of 21030301320000 in words is "twenty-one trillion, thirty billion, three hundred one million, three hundred twenty thousand".