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1418830 = 25720269
BaseRepresentation
bin101011010011001001110
32200002021021
411122121032
5330400310
650224354
715026350
oct5323116
92602237
101418830
11889a96
125850ba
133a8a5a
1428d0d0
151d05da
hex15a64e

1418830 has 16 divisors (see below), whose sum is σ = 2918880. Its totient is φ = 486432.

The previous prime is 1418797. The next prime is 1418831. The reversal of 1418830 is 388141.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1418795 and 1418804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1418831) 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, 10065 + ... + 10204.

It is an arithmetic number, because the mean of its divisors is an integer number (182430).

21418830 is an apocalyptic number.

1418830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1418830 is an abundant number, since it is smaller than the sum of its proper divisors (1500050).

1418830 is a wasteful number, since it uses less digits than its factorization.

1418830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20283.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 1418830 is about 1191.1465065222. The cubic root of 1418830 is about 112.3682078075.

The spelling of 1418830 in words is "one million, four hundred eighteen thousand, eight hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 20269 40538 101345 141883 202690 283766 709415 1418830