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1214315331 = 31193339289
BaseRepresentation
bin100100001100000…
…1111101101000011
310010121221121110220
41020120033231003
54441331042311
6320254554123
742043336635
oct11030175503
93117847426
101214315331
115734a4099
1229a808943
131647672a8
14b73b8a55
1571917206
hex4860fb43

1214315331 has 8 divisors (see below), whose sum is σ = 1620449040. Its totient is φ = 808862592.

The previous prime is 1214315317. The next prime is 1214315341. The reversal of 1214315331 is 1335134121.

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

It is not a de Polignac number, because 1214315331 - 221 = 1212218179 is a prime.

It is a super-2 number, since 2×12143153312 = 2949123446203279122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1214315341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166066 + ... + 173223.

It is an arithmetic number, because the mean of its divisors is an integer number (202556130).

Almost surely, 21214315331 is an apocalyptic number.

1214315331 is a deficient number, since it is larger than the sum of its proper divisors (406133709).

1214315331 is a wasteful number, since it uses less digits than its factorization.

1214315331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340485.

The product of its digits is 1080, while the sum is 24.

The square root of 1214315331 is about 34847.0275776859. The cubic root of 1214315331 is about 1066.8675179177.

Adding to 1214315331 its reverse (1335134121), we get a palindrome (2549449452).

The spelling of 1214315331 in words is "one billion, two hundred fourteen million, three hundred fifteen thousand, three hundred thirty-one".

Divisors: 1 3 1193 3579 339289 1017867 404771777 1214315331