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1415442 = 23767503
BaseRepresentation
bin101011001100100010010
32122220121210
411121210102
5330243232
650200550
715013440
oct5314422
92586553
101415442
11887496
12583156
133a7352
1428bb90
151ce5cc
hex159912

1415442 has 32 divisors (see below), whose sum is σ = 3290112. Its totient is φ = 397584.

The previous prime is 1415441. The next prime is 1415459. The reversal of 1415442 is 2445141.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1415441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2563 + ... + 3065.

It is an arithmetic number, because the mean of its divisors is an integer number (102816).

21415442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1415442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1645056).

1415442 is an abundant number, since it is smaller than the sum of its proper divisors (1874670).

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

1415442 is a wasteful number, since it uses less digits than its factorization.

1415442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582.

The product of its digits is 640, while the sum is 21.

The square root of 1415442 is about 1189.7234972883. The cubic root of 1415442 is about 112.2786958115.

It can be divided in two parts, 14154 and 42, that added together give a triangular number (14196 = T168).

The spelling of 1415442 in words is "one million, four hundred fifteen thousand, four hundred forty-two".

Divisors: 1 2 3 6 7 14 21 42 67 134 201 402 469 503 938 1006 1407 1509 2814 3018 3521 7042 10563 21126 33701 67402 101103 202206 235907 471814 707721 1415442