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270303140 = 22513515157
BaseRepresentation
bin10000000111000…
…111111110100100
3200211121211012102
4100013013332210
51023144200030
642453311232
76461352542
oct2007077644
9624554172
10270303140
11129640828
1276635518
1344000ab3
1427c82d92
1518ae4c45
hex101c7fa4

270303140 has 12 divisors (see below), whose sum is σ = 567636636. Its totient is φ = 108121248.

The previous prime is 270303097. The next prime is 270303149. The reversal of 270303140 is 41303072.

It can be written as a sum of positive squares in 2 ways, for example, as 186104164 + 84198976 = 13642^2 + 9176^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 13515157 = 270303140 / (2 + 7 + 0 + 3 + 0 + 3 + 1 + 4 + 0).

It is not an unprimeable number, because it can be changed into a prime (270303149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6757559 + ... + 6757598.

It is an arithmetic number, because the mean of its divisors is an integer number (47303053).

Almost surely, 2270303140 is an apocalyptic number.

270303140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

270303140 is an abundant number, since it is smaller than the sum of its proper divisors (297333496).

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

270303140 is a wasteful number, since it uses less digits than its factorization.

270303140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13515166 (or 13515164 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 270303140 is about 16440.8983939443. The cubic root of 270303140 is about 646.5722037004.

The spelling of 270303140 in words is "two hundred seventy million, three hundred three thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 13515157 27030314 54060628 67575785 135151570 270303140