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136245340 = 22571188471
BaseRepresentation
bin10000001111011…
…11000001011100
3100111100222110201
420013233001130
5234334322330
621304113244
73243031510
oct1007570134
9314328421
10136245340
116a9a8160
1239765824
13222c435a
1414148140
15be63eca
hex81ef05c

136245340 has 48 divisors (see below), whose sum is σ = 356719104. Its totient is φ = 42465600.

The previous prime is 136245331. The next prime is 136245349. The reversal of 136245340 is 43542631.

It is an interprime number because it is at equal distance from previous prime (136245331) and next prime (136245349).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 136245299 and 136245308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136245349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42696 + ... + 45775.

It is an arithmetic number, because the mean of its divisors is an integer number (7431648).

Almost surely, 2136245340 is an apocalyptic number.

136245340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136245340 is an abundant number, since it is smaller than the sum of its proper divisors (220473764).

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

136245340 is a wasteful number, since it uses less digits than its factorization.

136245340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88498 (or 88496 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 136245340 is about 11672.4179157534. The cubic root of 136245340 is about 514.5653667921.

Adding to 136245340 its reverse (43542631), we get a palindrome (179787971).

The spelling of 136245340 in words is "one hundred thirty-six million, two hundred forty-five thousand, three hundred forty".

Divisors: 1 2 4 5 7 10 11 14 20 22 28 35 44 55 70 77 110 140 154 220 308 385 770 1540 88471 176942 353884 442355 619297 884710 973181 1238594 1769420 1946362 2477188 3096485 3892724 4865905 6192970 6812267 9731810 12385940 13624534 19463620 27249068 34061335 68122670 136245340