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136203380 = 2256810169
BaseRepresentation
bin10000001111001…
…00110001110100
3100111021211220122
420013210301310
5234332002010
621303151112
73242465255
oct1007446164
9314254818
10136203380
116a979685
1239745498
13222ab221
1414136b2c
15be56855
hex81e4c74

136203380 has 12 divisors (see below), whose sum is σ = 286027140. Its totient is φ = 54481344.

The previous prime is 136203377. The next prime is 136203409. The reversal of 136203380 is 83302631.

It can be written as a sum of positive squares in 2 ways, for example, as 32855824 + 103347556 = 5732^2 + 10166^2 .

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, 3405065 + ... + 3405104.

It is an arithmetic number, because the mean of its divisors is an integer number (23835595).

Almost surely, 2136203380 is an apocalyptic number.

136203380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136203380 is an abundant number, since it is smaller than the sum of its proper divisors (149823760).

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

136203380 is a wasteful number, since it uses less digits than its factorization.

136203380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6810178 (or 6810176 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 136203380 is about 11670.6203776834. The cubic root of 136203380 is about 514.5125371450.

The spelling of 136203380 in words is "one hundred thirty-six million, two hundred three thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 6810169 13620338 27240676 34050845 68101690 136203380