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202131242301 = 367377080767
BaseRepresentation
bin1011110000111111110…
…1011111110100111101
3201022201212121000022110
42330033331133310331
511302431044223201
6232505142004233
720414000132262
oct2741775376475
9638655530273
10202131242301
11787a58a907a
1233211416679
13160a3a285b1
149ad7181269
1553d060d6d6
hex2f0ff5fd3d

202131242301 has 4 divisors (see below), whose sum is σ = 269508323072. Its totient is φ = 134754161532.

The previous prime is 202131242267. The next prime is 202131242323. The reversal of 202131242301 is 103242131202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 202131242301 - 26 = 202131242237 is a prime.

It is a super-2 number, since 2×2021312423012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202131242351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33688540381 + ... + 33688540386.

It is an arithmetic number, because the mean of its divisors is an integer number (67377080768).

Almost surely, 2202131242301 is an apocalyptic number.

It is an amenable number.

202131242301 is a deficient number, since it is larger than the sum of its proper divisors (67377080771).

202131242301 is an equidigital number, since it uses as much as digits as its factorization.

202131242301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67377080770.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 202131242301 its reverse (103242131202), we get a palindrome (305373373503).

The spelling of 202131242301 in words is "two hundred two billion, one hundred thirty-one million, two hundred forty-two thousand, three hundred one".

Divisors: 1 3 67377080767 202131242301