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1379430 = 234513131
BaseRepresentation
bin101010000110001100110
32121002020000
411100301212
5323120210
645322130
714503443
oct5206146
92532200
101379430
11862428
12566346
13393b40
1427c9ca
151c3ac0
hex150c66

1379430 has 80 divisors (see below), whose sum is σ = 4024944. Its totient is φ = 336960.

The previous prime is 1379423. The next prime is 1379447. The reversal of 1379430 is 349731.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1379394 and 1379403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10465 + ... + 10595.

21379430 is an apocalyptic number.

1379430 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 1379430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2012472).

1379430 is an abundant number, since it is smaller than the sum of its proper divisors (2645514).

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

1379430 is a wasteful number, since it uses less digits than its factorization.

1379430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 1379430 is about 1174.4913792787. The cubic root of 1379430 is about 111.3182974982.

It can be divided in two parts, 13794 and 30, that added together give a cube (13824 = 243).

The spelling of 1379430 in words is "one million, three hundred seventy-nine thousand, four hundred thirty".

Divisors: 1 2 3 5 6 9 10 13 15 18 26 27 30 39 45 54 65 78 81 90 117 130 131 135 162 195 234 262 270 351 390 393 405 585 655 702 786 810 1053 1170 1179 1310 1703 1755 1965 2106 2358 3406 3510 3537 3930 5109 5265 5895 7074 8515 10218 10530 10611 11790 15327 17030 17685 21222 25545 30654 35370 45981 51090 53055 76635 91962 106110 137943 153270 229905 275886 459810 689715 1379430