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142450724 = 22132739437
BaseRepresentation
bin10000111110110…
…10000000100100
3100221001020122202
420133122000210
5242431410344
622045114032
73346545143
oct1037320044
9327036582
10142450724
1173456379
123b858918
1323687990
1414cc175a
15c78c94e
hex87da024

142450724 has 12 divisors (see below), whose sum is σ = 268464924. Its totient is φ = 65746464.

The previous prime is 142450723. The next prime is 142450727. The reversal of 142450724 is 427054241.

It can be written as a sum of positive squares in 2 ways, for example, as 93702400 + 48748324 = 9680^2 + 6982^2 .

It is not an unprimeable number, because it can be changed into a prime (142450723) 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 3 ways as a sum of consecutive naturals, for example, 1369667 + ... + 1369770.

It is an arithmetic number, because the mean of its divisors is an integer number (22372077).

Almost surely, 2142450724 is an apocalyptic number.

It is an amenable number.

142450724 is a deficient number, since it is larger than the sum of its proper divisors (126014200).

142450724 is a wasteful number, since it uses less digits than its factorization.

142450724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2739454 (or 2739452 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 29.

The square root of 142450724 is about 11935.2722633378. The cubic root of 142450724 is about 522.2617507694.

The spelling of 142450724 in words is "one hundred forty-two million, four hundred fifty thousand, seven hundred twenty-four".

Divisors: 1 2 4 13 26 52 2739437 5478874 10957748 35612681 71225362 142450724