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136515740 = 2256825787
BaseRepresentation
bin10000010001100…
…01000010011100
3100111212201101112
420020301002130
5234422000430
621314001152
73245236034
oct1010610234
9314781345
10136515740
1170072329
12398761b8
132238a45a
14141b88c4
15beb9195
hex823109c

136515740 has 12 divisors (see below), whose sum is σ = 286683096. Its totient is φ = 54606288.

The previous prime is 136515727. The next prime is 136515751. The reversal of 136515740 is 47515631.

It is a junction number, because it is equal to n+sod(n) for n = 136515697 and 136515706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3412874 + ... + 3412913.

It is an arithmetic number, because the mean of its divisors is an integer number (23890258).

Almost surely, 2136515740 is an apocalyptic number.

136515740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136515740 is an abundant number, since it is smaller than the sum of its proper divisors (150167356).

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

136515740 is a wasteful number, since it uses less digits than its factorization.

136515740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6825796 (or 6825794 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 136515740 is about 11683.9950359455. The cubic root of 136515740 is about 514.9055534222.

It can be divided in two parts, 13651 and 5740, that added together give a palindrome (19391).

The spelling of 136515740 in words is "one hundred thirty-six million, five hundred fifteen thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 6825787 13651574 27303148 34128935 68257870 136515740