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20301401421 = 3272314010629
BaseRepresentation
bin10010111010000011…
…101100110101001101
31221101211200001021100
4102322003230311031
5313034124321141
613154253253313
71316042031150
oct227203546515
957354601240
1020301401421
118678680404
123b26a94239
131bb6c76582
14da8341c97
157dc4550b6
hex4ba0ecd4d

20301401421 has 24 divisors (see below), whose sum is σ = 34970532480. Its totient is φ = 11096417376.

The previous prime is 20301401387. The next prime is 20301401429. The reversal of 20301401421 is 12410410302.

20301401421 is a `hidden beast` number, since 203 + 0 + 1 + 40 + 1 + 421 = 666.

It is not a de Polignac number, because 20301401421 - 27 = 20301401293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20301401394 and 20301401403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20301401429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7003866 + ... + 7006763.

It is an arithmetic number, because the mean of its divisors is an integer number (1457105520).

Almost surely, 220301401421 is an apocalyptic number.

20301401421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20301401421 is a deficient number, since it is larger than the sum of its proper divisors (14669131059).

20301401421 is a wasteful number, since it uses less digits than its factorization.

20301401421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14010665 (or 14010662 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20301401421 its reverse (12410410302), we get a palindrome (32711811723).

The spelling of 20301401421 in words is "twenty billion, three hundred one million, four hundred one thousand, four hundred twenty-one".

Divisors: 1 3 7 9 21 23 63 69 161 207 483 1449 14010629 42031887 98074403 126095661 294223209 322244467 882669627 966733401 2255711269 2900200203 6767133807 20301401421