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1111131301 = 72193293401
BaseRepresentation
bin100001000111010…
…1000010010100101
32212102210022121011
41002032220102211
54233422200201
6302131222221
736351313600
oct10216502245
92772708534
101111131301
11520228435
12270147971
1314927a457
14a77d9337
1567834151
hex423a84a5

1111131301 has 24 divisors (see below), whose sum is σ = 1306922904. Its totient is φ = 941875200.

The previous prime is 1111131299. The next prime is 1111131323. The reversal of 1111131301 is 1031311111.

It can be written as a sum of positive squares in 4 ways, for example, as 655308801 + 455822500 = 25599^2 + 21350^2 .

It is not a de Polignac number, because 1111131301 - 21 = 1111131299 is a prime.

It is a super-2 number, since 2×11111313012 = 2469225536123905202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111131331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2770701 + ... + 2771101.

It is an arithmetic number, because the mean of its divisors is an integer number (54455121).

Almost surely, 21111131301 is an apocalyptic number.

It is an amenable number.

1111131301 is a deficient number, since it is larger than the sum of its proper divisors (195791603).

1111131301 is a wasteful number, since it uses less digits than its factorization.

1111131301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901 (or 894 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 13.

The square root of 1111131301 is about 33333.6361802909. The cubic root of 1111131301 is about 1035.7504420812.

Adding to 1111131301 its reverse (1031311111), we get a palindrome (2142442412).

The spelling of 1111131301 in words is "one billion, one hundred eleven million, one hundred thirty-one thousand, three hundred one".

Divisors: 1 7 49 193 293 401 1351 2051 2807 9457 14357 19649 56549 77393 117493 395843 541751 822451 2770901 3792257 5757157 22676149 158733043 1111131301