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1142024 = 231379139
BaseRepresentation
bin100010110110100001000
32011000120012
410112310020
5243021044
640251052
712464342
oct4266410
92130505
101142024
11710024
12470a88
1330ca70
1421a292
1517859e
hex116d08

1142024 has 32 divisors (see below), whose sum is σ = 2352000. Its totient is φ = 516672.

The previous prime is 1142021. The next prime is 1142039. The reversal of 1142024 is 4202411.

1142024 = T129 + T130 + ... + T207.

It is not an unprimeable number, because it can be changed into a prime (1142021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8147 + ... + 8285.

It is an arithmetic number, because the mean of its divisors is an integer number (73500).

21142024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1142024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1176000).

1142024 is an abundant number, since it is smaller than the sum of its proper divisors (1209976).

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

1142024 is a wasteful number, since it uses less digits than its factorization.

1142024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1142024 is about 1068.6552297163. The cubic root of 1142024 is about 104.5261795020.

Adding to 1142024 its reverse (4202411), we get a palindrome (5344435).

It can be divided in two parts, 11 and 42024, that multiplied together give a palindrome (462264).

The spelling of 1142024 in words is "one million, one hundred forty-two thousand, twenty-four".

Divisors: 1 2 4 8 13 26 52 79 104 139 158 278 316 556 632 1027 1112 1807 2054 3614 4108 7228 8216 10981 14456 21962 43924 87848 142753 285506 571012 1142024