Search a number
-
+
20210323401 = 3217132093617
BaseRepresentation
bin10010110100101000…
…010000111111001001
31221011111021210201100
4102310220100333021
5312342320322101
613141241212013
71313554625442
oct226450207711
957144253640
1020210323401
118631223114
123b00491009
131ba1137a58
14d9a1d42c9
157d4463e86
hex4b4a10fc9

20210323401 has 12 divisors (see below), whose sum is σ = 30909906612. Its totient is φ = 12680987136.

The previous prime is 20210323373. The next prime is 20210323411. The reversal of 20210323401 is 10432301202.

20210323401 is a `hidden beast` number, since 20 + 210 + 32 + 3 + 401 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5531789376 + 14678534025 = 74376^2 + 121155^2 .

It is not a de Polignac number, because 20210323401 - 29 = 20210322889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20210323411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66046656 + ... + 66046961.

It is an arithmetic number, because the mean of its divisors is an integer number (2575825551).

Almost surely, 220210323401 is an apocalyptic number.

It is an amenable number.

20210323401 is a deficient number, since it is larger than the sum of its proper divisors (10699583211).

20210323401 is a wasteful number, since it uses less digits than its factorization.

20210323401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132093640 (or 132093637 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20210323401 its reverse (10432301202), we get a palindrome (30642624603).

The spelling of 20210323401 in words is "twenty billion, two hundred ten million, three hundred twenty-three thousand, four hundred one".

Divisors: 1 3 9 17 51 153 132093617 396280851 1188842553 2245591489 6736774467 20210323401