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1102097680 = 24589154789
BaseRepresentation
bin100000110110000…
…1010110100010000
32211210210100210121
41001230022310100
54224114111210
6301205440024
736211450525
oct10154126420
92753710717
101102097680
11516118332
12269110014
13147436708
14a652714c
1566b4c6da
hex41b0ad10

1102097680 has 40 divisors (see below), whose sum is σ = 2591184600. Its totient is φ = 435883008.

The previous prime is 1102097669. The next prime is 1102097681. The reversal of 1102097680 is 867902011.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 107578384 + 994519296 = 10372^2 + 31536^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×11020976802 = 2429238592522764800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1102097681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70275 + ... + 84514.

It is an arithmetic number, because the mean of its divisors is an integer number (64779615).

Almost surely, 21102097680 is an apocalyptic number.

1102097680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1102097680 is an abundant number, since it is smaller than the sum of its proper divisors (1489086920).

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

1102097680 is a wasteful number, since it uses less digits than its factorization.

1102097680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154891 (or 154885 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 1102097680 is about 33197.8565573141. The cubic root of 1102097680 is about 1032.9358785939.

Adding to 1102097680 its reverse (867902011), we get a palindrome (1969999691).

The spelling of 1102097680 in words is "one billion, one hundred two million, ninety-seven thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 89 178 356 445 712 890 1424 1780 3560 7120 154789 309578 619156 773945 1238312 1547890 2476624 3095780 6191560 12383120 13776221 27552442 55104884 68881105 110209768 137762210 220419536 275524420 551048840 1102097680