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1142972 = 22793617
BaseRepresentation
bin100010111000010111100
32011001212022
410113002330
5243033342
640255312
712500165
oct4270274
92131768
101142972
11710806
12471538
1331031c
1421a76c
151789d2
hex1170bc

1142972 has 12 divisors (see below), whose sum is σ = 2026080. Its totient is φ = 564096.

The previous prime is 1142971. The next prime is 1143013. The reversal of 1142972 is 2792411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142971) 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, 1493 + ... + 2124.

It is an arithmetic number, because the mean of its divisors is an integer number (168840).

21142972 is an apocalyptic number.

It is an amenable number.

1142972 is a deficient number, since it is larger than the sum of its proper divisors (883108).

1142972 is a wasteful number, since it uses less digits than its factorization.

1142972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3700 (or 3698 counting only the distinct ones).

The product of its digits is 1008, while the sum is 26.

The square root of 1142972 is about 1069.0986858097. The cubic root of 1142972 is about 104.5550940759. Note that the first 3 decimals are identical.

The spelling of 1142972 in words is "one million, one hundred forty-two thousand, nine hundred seventy-two".