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231302213203202 = 2136818453410321
BaseRepresentation
bin110100100101111000111110…
…010000001111010100000010
31010022222021102221012122022122
4310211320332100033110002
5220304123413040000302
62135534434141004242
766502014316425041
oct6445707620172402
91108867387178278
10231302213203202
1167777799353949
1221b37b03253682
139c0a92219a74b
144119130472558
151bb1a7c2173a2
hexd25e3e40f502

231302213203202 has 8 divisors (see below), whose sum is σ = 346978680076812. Its totient is φ = 115642653177600.

The previous prime is 231302213203189. The next prime is 231302213203253. The reversal of 231302213203202 is 202302312203132.

It can be written as a sum of positive squares in 2 ways, for example, as 231296616816721 + 5596386481 = 15208439^2 + 74809^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2313022132032022 (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4226677799 + ... + 4226732522.

Almost surely, 2231302213203202 is an apocalyptic number.

231302213203202 is a deficient number, since it is larger than the sum of its proper divisors (115676466873610).

231302213203202 is a wasteful number, since it uses less digits than its factorization.

231302213203202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8453424004.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 231302213203202 its reverse (202302312203132), we get a palindrome (433604525406334).

The spelling of 231302213203202 in words is "two hundred thirty-one trillion, three hundred two billion, two hundred thirteen million, two hundred three thousand, two hundred two".

Divisors: 1 2 13681 27362 8453410321 16906820642 115651106601601 231302213203202