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1142952 = 23347623
BaseRepresentation
bin100010111000010101000
32011001211120
410113002220
5243033302
640255240
712500136
oct4270250
92131746
101142952
11710798
12471520
13310305
1421a756
151789bc
hex1170a8

1142952 has 16 divisors (see below), whose sum is σ = 2857440. Its totient is φ = 380976.

The previous prime is 1142941. The next prime is 1142959. The reversal of 1142952 is 2592411.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 47623 = 1142952 / (1 + 1 + 4 + 2 + 9 + 5 + 2).

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (1142959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23788 + ... + 23835.

It is an arithmetic number, because the mean of its divisors is an integer number (178590).

21142952 is an apocalyptic number.

1142952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1142952 is an abundant number, since it is smaller than the sum of its proper divisors (1714488).

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

1142952 is a wasteful number, since it uses less digits than its factorization.

1142952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47632 (or 47628 counting only the distinct ones).

The product of its digits is 720, while the sum is 24.

The square root of 1142952 is about 1069.0893320953. The cubic root of 1142952 is about 104.5544842290.

The spelling of 1142952 in words is "one million, one hundred forty-two thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 24 47623 95246 142869 190492 285738 380984 571476 1142952