Search a number
-
+
1214244531 = 32179753721
BaseRepresentation
bin100100001011111…
…1110011010110011
310010121211000100200
41020113332122303
54441321311111
6320253250243
742042623343
oct11027763263
93117730320
101214244531
11573455985
1229a793983
13164740cb6
14b739ad23
1571901256
hex485fe6b3

1214244531 has 12 divisors (see below), whose sum is σ = 1763709480. Its totient is φ = 804972960.

The previous prime is 1214244527. The next prime is 1214244569. The reversal of 1214244531 is 1354424121.

1214244531 is a `hidden beast` number, since 1 + 214 + 2 + 445 + 3 + 1 = 666.

It is not a de Polignac number, because 1214244531 - 22 = 1214244527 is a prime.

It is a super-2 number, since 2×12142445312 = 2948779562126819922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1214244495 and 1214244504.

It is not an unprimeable number, because it can be changed into a prime (1214246531) 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, 375250 + ... + 378471.

It is an arithmetic number, because the mean of its divisors is an integer number (146975790).

Almost surely, 21214244531 is an apocalyptic number.

1214244531 is a deficient number, since it is larger than the sum of its proper divisors (549464949).

1214244531 is a wasteful number, since it uses less digits than its factorization.

1214244531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753906 (or 753903 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 1214244531 is about 34846.0116943102. The cubic root of 1214244531 is about 1066.8467831365.

Adding to 1214244531 its reverse (1354424121), we get a palindrome (2568668652).

The spelling of 1214244531 in words is "one billion, two hundred fourteen million, two hundred forty-four thousand, five hundred thirty-one".

Divisors: 1 3 9 179 537 1611 753721 2261163 6783489 134916059 404748177 1214244531