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1389124 = 2211131241
BaseRepresentation
bin101010011001001000100
32121120112001
411103021010
5323422444
645435044
714543632
oct5231104
92546461
101389124
11869740
1256ba84
13398389
14282352
151c68d4
hex153244

1389124 has 24 divisors (see below), whose sum is σ = 2683296. Its totient is φ = 624000.

The previous prime is 1389107. The next prime is 1389133. The reversal of 1389124 is 4219831.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1389092 and 1389101.

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, 5644 + ... + 5884.

It is an arithmetic number, because the mean of its divisors is an integer number (111804).

21389124 is an apocalyptic number.

It is an amenable number.

1389124 is a deficient number, since it is larger than the sum of its proper divisors (1294172).

1389124 is a wasteful number, since it uses less digits than its factorization.

1389124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387 (or 385 counting only the distinct ones).

The product of its digits is 1728, while the sum is 28.

The square root of 1389124 is about 1178.6110469531. The cubic root of 1389124 is about 111.5784536368.

The spelling of 1389124 in words is "one million, three hundred eighty-nine thousand, one hundred twenty-four".

Divisors: 1 2 4 11 22 44 131 241 262 482 524 964 1441 2651 2882 5302 5764 10604 31571 63142 126284 347281 694562 1389124