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1311301302 = 231931537001
BaseRepresentation
bin100111000101000…
…1101111010110110
310101101110000012220
41032022031322312
510141143120202
6334041423210
744331606603
oct11612157266
93341400186
101311301302
11613217093
1230719ab06
1317b893c3c
14c62236aa
157a1c3abc
hex4e28deb6

1311301302 has 64 divisors (see below), whose sum is σ = 2903869440. Its totient is φ = 393120000.

The previous prime is 1311301301. The next prime is 1311301331. The reversal of 1311301302 is 2031031131.

It is a super-2 number, since 2×13113013022 = 3439022209253790408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311301301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 183802 + ... + 190802.

It is an arithmetic number, because the mean of its divisors is an integer number (45372960).

Almost surely, 21311301302 is an apocalyptic number.

1311301302 is an abundant number, since it is smaller than the sum of its proper divisors (1592568138).

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

1311301302 is a wasteful number, since it uses less digits than its factorization.

1311301302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7109.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1311301302 is about 36211.8944823383. The cubic root of 1311301302 is about 1094.5463678403.

Adding to 1311301302 its reverse (2031031131), we get a palindrome (3342332433).

The spelling of 1311301302 in words is "one billion, three hundred eleven million, three hundred one thousand, three hundred two".

Divisors: 1 2 3 6 19 31 38 53 57 62 93 106 114 159 186 318 589 1007 1178 1643 1767 2014 3021 3286 3534 4929 6042 7001 9858 14002 21003 31217 42006 62434 93651 133019 187302 217031 266038 371053 399057 434062 651093 742106 798114 1113159 1302186 2226318 4123589 7050007 8247178 11502643 12370767 14100014 21150021 23005286 24741534 34507929 42300042 69015858 218550217 437100434 655650651 1311301302