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1115402141 = 72611033623
BaseRepresentation
bin100001001111011…
…1010111110011101
32212201211022002102
41002132322332131
54241020332031
6302402534445
736432522200
oct10236727635
92781738072
101115402141
11522685157
12271667425
1314a114389
14a81cb937
1567dc97cb
hex427baf9d

1115402141 has 24 divisors (see below), whose sum is σ = 1331950464. Its totient is φ = 930998880.

The previous prime is 1115402137. The next prime is 1115402143. The reversal of 1115402141 is 1412045111.

It is not a de Polignac number, because 1115402141 - 22 = 1115402137 is a prime.

It is a super-2 number, since 2×11154021412 = 2488243872294767762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115402143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 306056 + ... + 309678.

It is an arithmetic number, because the mean of its divisors is an integer number (55497936).

Almost surely, 21115402141 is an apocalyptic number.

It is an amenable number.

1115402141 is a deficient number, since it is larger than the sum of its proper divisors (216548323).

1115402141 is a wasteful number, since it uses less digits than its factorization.

1115402141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3801 (or 3794 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 1115402141 is about 33397.6367577109. The cubic root of 1115402141 is about 1037.0757786815.

Adding to 1115402141 its reverse (1412045111), we get a palindrome (2527447252).

The spelling of 1115402141 in words is "one billion, one hundred fifteen million, four hundred two thousand, one hundred forty-one".

Divisors: 1 7 49 61 103 427 721 2989 3623 5047 6283 25361 43981 177527 221003 307867 373169 1547021 2612183 10829147 18285281 22763309 159343163 1115402141