Search a number
-
+
1235380 = 225193251
BaseRepresentation
bin100101101100110110100
32022202121211
410231212310
5304013010
642251204
713333456
oct4554664
92282554
101235380
11774183
124b6b04
133433c3
142422d6
1519608a
hex12d9b4

1235380 has 24 divisors (see below), whose sum is σ = 2731680. Its totient is φ = 468000.

The previous prime is 1235369. The next prime is 1235383. The reversal of 1235380 is 835321.

It is a plaindrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1235383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1246 + ... + 2005.

It is an arithmetic number, because the mean of its divisors is an integer number (113820).

21235380 is an apocalyptic number.

1235380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1235380 is an abundant number, since it is smaller than the sum of its proper divisors (1496300).

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

1235380 is a wasteful number, since it uses less digits than its factorization.

1235380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3279 (or 3277 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1235380 is about 1111.4764954780. The cubic root of 1235380 is about 107.3001153159.

The spelling of 1235380 in words is "one million, two hundred thirty-five thousand, three hundred eighty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 3251 6502 13004 16255 32510 61769 65020 123538 247076 308845 617690 1235380