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1342280 = 235231459
BaseRepresentation
bin101000111101101001000
32112012021002
411013231020
5320423110
644434132
714260232
oct5075510
92465232
101342280
11837525
12548948
1337cc64
1426d252
151b7aa5
hex147b48

1342280 has 32 divisors (see below), whose sum is σ = 3153600. Its totient is φ = 513216.

The previous prime is 1342279. The next prime is 1342283. The reversal of 1342280 is 822431.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1342283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191 + ... + 1649.

It is an arithmetic number, because the mean of its divisors is an integer number (98550).

21342280 is an apocalyptic number.

1342280 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 1342280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1576800).

1342280 is an abundant number, since it is smaller than the sum of its proper divisors (1811320).

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

1342280 is a wasteful number, since it uses less digits than its factorization.

1342280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493 (or 1489 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1342280 is about 1158.5680817285. The cubic root of 1342280 is about 110.3098700778.

The spelling of 1342280 in words is "one million, three hundred forty-two thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 23 40 46 92 115 184 230 460 920 1459 2918 5836 7295 11672 14590 29180 33557 58360 67114 134228 167785 268456 335570 671140 1342280