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135374880 = 25351392029
BaseRepresentation
bin10000001000110…
…10100000100000
3100102201202102110
420010122200200
5234123444010
621233315320
73232444644
oct1004324040
9312652373
10135374880
116a463173
1239405b40
132207b0a4
1413d9cc24
15bd41120
hex811a820

135374880 has 96 divisors (see below), whose sum is σ = 429710400. Its totient is φ = 35822592.

The previous prime is 135374843. The next prime is 135374881. The reversal of 135374880 is 88473531.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (135374881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65706 + ... + 67734.

It is an arithmetic number, because the mean of its divisors is an integer number (4476150).

Almost surely, 2135374880 is an apocalyptic number.

135374880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135374880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214855200).

135374880 is an abundant number, since it is smaller than the sum of its proper divisors (294335520).

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

135374880 is a wasteful number, since it uses less digits than its factorization.

135374880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186 (or 2178 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 135374880 is about 11635.0711213984. The cubic root of 135374880 is about 513.4671864733.

The spelling of 135374880 in words is "one hundred thirty-five million, three hundred seventy-four thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 139 160 240 278 417 480 556 695 834 1112 1390 1668 2029 2085 2224 2780 3336 4058 4170 4448 5560 6087 6672 8116 8340 10145 11120 12174 13344 16232 16680 20290 22240 24348 30435 32464 33360 40580 48696 60870 64928 66720 81160 97392 121740 162320 194784 243480 282031 324640 486960 564062 846093 973920 1128124 1410155 1692186 2256248 2820310 3384372 4230465 4512496 5640620 6768744 8460930 9024992 11281240 13537488 16921860 22562480 27074976 33843720 45124960 67687440 135374880