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1131333030 = 232513195957
BaseRepresentation
bin100001101101110…
…1100010110100110
32220211210200011100
41003123230112212
54304110124110
6304132220530
740015113012
oct10333542646
92824720140
101131333030
11530676283
12276a6a746
13150501639
14aa377542
15694c4bc0
hex436ec5a6

1131333030 has 48 divisors (see below), whose sum is σ = 2963950704. Its totient is φ = 299382720.

The previous prime is 1131332999. The next prime is 1131333041. The reversal of 1131333030 is 303331311.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1131332994 and 1131333012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36189 + ... + 59768.

It is an arithmetic number, because the mean of its divisors is an integer number (61748973).

Almost surely, 21131333030 is an apocalyptic number.

1131333030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131333030 is an abundant number, since it is smaller than the sum of its proper divisors (1832617674).

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

1131333030 is a wasteful number, since it uses less digits than its factorization.

1131333030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96101 (or 96098 counting only the distinct ones).

The product of its (nonzero) digits is 243, while the sum is 18.

The square root of 1131333030 is about 33635.2944092957. The cubic root of 1131333030 is about 1041.9898509799.

Adding to 1131333030 its reverse (303331311), we get a palindrome (1434664341).

The spelling of 1131333030 in words is "one billion, one hundred thirty-one million, three hundred thirty-three thousand, thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 131 262 393 655 786 1179 1310 1965 2358 3930 5895 11790 95957 191914 287871 479785 575742 863613 959570 1439355 1727226 2878710 4318065 8636130 12570367 25140734 37711101 62851835 75422202 113133303 125703670 188555505 226266606 377111010 565666515 1131333030