Search a number
-
+
1239030 = 233513353
BaseRepresentation
bin100101110011111110110
32022221122000
410232133312
5304122110
642320130
713350222
oct4563766
92287560
101239030
117769a1
124b9046
13344c70
14243782
151971c0
hex12e7f6

1239030 has 64 divisors (see below), whose sum is σ = 3568320. Its totient is φ = 304128.

The previous prime is 1239023. The next prime is 1239041. The reversal of 1239030 is 309321.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1238994 and 1239012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3334 + ... + 3686.

It is an arithmetic number, because the mean of its divisors is an integer number (55755).

21239030 is an apocalyptic number.

1239030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1239030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1784160).

1239030 is an abundant number, since it is smaller than the sum of its proper divisors (2329290).

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

1239030 is a wasteful number, since it uses less digits than its factorization.

1239030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1239030 is about 1113.1172444985. The cubic root of 1239030 is about 107.4056861632.

The spelling of 1239030 in words is "one million, two hundred thirty-nine thousand, thirty".

Divisors: 1 2 3 5 6 9 10 13 15 18 26 27 30 39 45 54 65 78 90 117 130 135 195 234 270 351 353 390 585 702 706 1059 1170 1755 1765 2118 3177 3510 3530 4589 5295 6354 9178 9531 10590 13767 15885 19062 22945 27534 31770 41301 45890 47655 68835 82602 95310 123903 137670 206505 247806 413010 619515 1239030