Search a number
-
+
1213031132110 = 25722475573739
BaseRepresentation
bin10001101001101110010…
…010100010101111001110
311021222001020002012200001
4101221232102202233032
5124333241432211420
62325131522554514
7153432020332600
oct21515622425716
94258036065601
101213031132110
114284974a5566
12177115808a3a
138a508269a75
14429d5079170
1521848c3bb0a
hex11a6e4a2bce

1213031132110 has 24 divisors (see below), whose sum is σ = 2539938657240. Its totient is φ = 415896387984.

The previous prime is 1213031132087. The next prime is 1213031132113. The reversal of 1213031132110 is 112311303121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213031132113) 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, 1237786380 + ... + 1237787359.

It is an arithmetic number, because the mean of its divisors is an integer number (105830777385).

Almost surely, 21213031132110 is an apocalyptic number.

1213031132110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213031132110 is an abundant number, since it is smaller than the sum of its proper divisors (1326907525130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1213031132110 is a wasteful number, since it uses less digits than its factorization.

1213031132110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2475573760 (or 2475573753 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1213031132110 its reverse (112311303121), we get a palindrome (1325342435231).

The spelling of 1213031132110 in words is "one trillion, two hundred thirteen billion, thirty-one million, one hundred thirty-two thousand, one hundred ten".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 2475573739 4951147478 12377868695 17329016173 24755737390 34658032346 86645080865 121303113211 173290161730 242606226422 606515566055 1213031132110