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1385480 = 235191823
BaseRepresentation
bin101010010010000001000
32121101112002
411102100020
5323313410
645410132
714530205
oct5222010
92541462
101385480
11866a28
12569948
13396815
14280cac
151c57a5
hex152408

1385480 has 32 divisors (see below), whose sum is σ = 3283200. Its totient is φ = 524736.

The previous prime is 1385479. The next prime is 1385507. The reversal of 1385480 is 845831.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152 + ... + 1671.

It is an arithmetic number, because the mean of its divisors is an integer number (102600).

21385480 is an apocalyptic number.

1385480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1385480 is an abundant number, since it is smaller than the sum of its proper divisors (1897720).

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

1385480 is a wasteful number, since it uses less digits than its factorization.

1385480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1853 (or 1849 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 1385480 is about 1177.0641443864. The cubic root of 1385480 is about 111.4808026633.

The spelling of 1385480 in words is "one million, three hundred eighty-five thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 19 20 38 40 76 95 152 190 380 760 1823 3646 7292 9115 14584 18230 34637 36460 69274 72920 138548 173185 277096 346370 692740 1385480