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270042140 = 22513502107
BaseRepresentation
bin10000000110001…
…000010000011100
3200211010120011202
4100012020100130
51023112322030
642443535032
76456214604
oct2006102034
9624116152
10270042140
11129482725
127652a478
1343c3c064
1427c15c04
1518a92745
hex1018841c

270042140 has 12 divisors (see below), whose sum is σ = 567088536. Its totient is φ = 108016848.

The previous prime is 270042061. The next prime is 270042163. The reversal of 270042140 is 41240072.

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: 13502107 = 270042140 / (2 + 7 + 0 + 0 + 4 + 2 + 1 + 4 + 0).

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, 6751034 + ... + 6751073.

It is an arithmetic number, because the mean of its divisors is an integer number (47257378).

Almost surely, 2270042140 is an apocalyptic number.

270042140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

270042140 is an abundant number, since it is smaller than the sum of its proper divisors (297046396).

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

270042140 is a wasteful number, since it uses less digits than its factorization.

270042140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13502116 (or 13502114 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 270042140 is about 16432.9589544914. The cubic root of 270042140 is about 646.3640304003.

The spelling of 270042140 in words is "two hundred seventy million, forty-two thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 13502107 27004214 54008428 67510535 135021070 270042140