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1349420 = 225109619
BaseRepresentation
bin101001001011100101100
32112120001112
411021130230
5321140140
644531152
714320112
oct5113454
92476045
101349420
11841926
12550ab8
13383297
14271ab2
151b9c65
hex14972c

1349420 has 24 divisors (see below), whose sum is σ = 2864400. Its totient is φ = 533952.

The previous prime is 1349407. The next prime is 1349423. The reversal of 1349420 is 249431.

It is not an unprimeable number, because it can be changed into a prime (1349423) 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, 1871 + ... + 2489.

It is an arithmetic number, because the mean of its divisors is an integer number (119350).

21349420 is an apocalyptic number.

1349420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1349420 is an abundant number, since it is smaller than the sum of its proper divisors (1514980).

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

1349420 is a wasteful number, since it uses less digits than its factorization.

1349420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737 (or 735 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1349420 is about 1161.6453847883. The cubic root of 1349420 is about 110.5051150011.

It can be divided in two parts, 1349 and 420, that multiplied together give a triangular number (566580 = T1064).

The spelling of 1349420 in words is "one million, three hundred forty-nine thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 109 218 436 545 619 1090 1238 2180 2476 3095 6190 12380 67471 134942 269884 337355 674710 1349420