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115342040 = 23511223831
BaseRepresentation
bin1101101111111…
…11101011011000
322001000222112102
412313333223120
5214011421130
615240102532
72600251112
oct667775330
9261028472
10115342040
115a120200
1232764a48
131ab85a38
14114663b2
15a1d5645
hex6dffad8

115342040 has 48 divisors (see below), whose sum is σ = 285269040. Its totient is φ = 41940800.

The previous prime is 115342013. The next prime is 115342043. The reversal of 115342040 is 40243511.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115342043) 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 11 ways as a sum of consecutive naturals, for example, 7076 + ... + 16755.

It is an arithmetic number, because the mean of its divisors is an integer number (5943105).

Almost surely, 2115342040 is an apocalyptic number.

115342040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115342040 is an abundant number, since it is smaller than the sum of its proper divisors (169927000).

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

115342040 is a wasteful number, since it uses less digits than its factorization.

115342040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23864 (or 23849 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 115342040 is about 10739.7411514431. The cubic root of 115342040 is about 486.7760580600.

Adding to 115342040 its reverse (40243511), we get a palindrome (155585551).

The spelling of 115342040 in words is "one hundred fifteen million, three hundred forty-two thousand, forty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 121 220 242 440 484 605 968 1210 2420 4840 23831 47662 95324 119155 190648 238310 262141 476620 524282 953240 1048564 1310705 2097128 2621410 2883551 5242820 5767102 10485640 11534204 14417755 23068408 28835510 57671020 115342040