Search a number
-
+
1203310212 = 22313139211263
BaseRepresentation
bin100011110111001…
…0000111010000100
310002212020111021220
41013232100322010
54431021411322
6315223040340
741550653016
oct10756207204
93085214256
101203310212
11568267855
12296ba00b0
131623b30a0
14b5b521b6
157099155c
hex47b90e84

1203310212 has 96 divisors (see below), whose sum is σ = 3071523840. Its totient is φ = 364452480.

The previous prime is 1203310211. The next prime is 1203310231. The reversal of 1203310212 is 2120133021.

It is a junction number, because it is equal to n+sod(n) for n = 1203310191 and 1203310200.

It is not an unprimeable number, because it can be changed into a prime (1203310211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4575193 + ... + 4575455.

It is an arithmetic number, because the mean of its divisors is an integer number (31995040).

Almost surely, 21203310212 is an apocalyptic number.

1203310212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1203310212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1535761920).

1203310212 is an abundant number, since it is smaller than the sum of its proper divisors (1868213628).

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

1203310212 is a wasteful number, since it uses less digits than its factorization.

1203310212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633 (or 631 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1203310212 is about 34688.7620419063. The cubic root of 1203310212 is about 1063.6347901902.

Adding to 1203310212 its reverse (2120133021), we get a palindrome (3323443233).

The spelling of 1203310212 in words is "one billion, two hundred three million, three hundred ten thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 139 156 211 263 278 417 422 526 556 633 789 834 844 1052 1266 1578 1668 1807 2532 2743 3156 3419 3614 5421 5486 6838 7228 8229 10257 10842 10972 13676 16458 20514 21684 29329 32916 36557 41028 55493 58658 73114 87987 109671 110986 117316 146228 166479 175974 219342 221972 332958 351948 381277 438684 475241 665916 721409 762554 950482 1143831 1425723 1442818 1525108 1900964 2164227 2287662 2851446 2885636 4328454 4575324 5702892 7713527 8656908 15427054 23140581 30854108 46281162 92562324 100275851 200551702 300827553 401103404 601655106 1203310212