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142450746 = 2379397757
BaseRepresentation
bin10000111110110…
…10000000111010
3100221001020200120
420133122000322
5242431410441
622045114110
73346545204
oct1037320072
9327036616
10142450746
1173456399
123b858936
13236879a9
1414cc1774
15c78c966
hex87da03a

142450746 has 32 divisors (see below), whose sum is σ = 289616640. Its totient is φ = 46702656.

The previous prime is 142450741. The next prime is 142450757. The reversal of 142450746 is 647054241.

It is not an unprimeable number, because it can be changed into a prime (142450741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187800 + ... + 188556.

It is an arithmetic number, because the mean of its divisors is an integer number (9050520).

Almost surely, 2142450746 is an apocalyptic number.

142450746 is an abundant number, since it is smaller than the sum of its proper divisors (147165894).

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

142450746 is a wasteful number, since it uses less digits than its factorization.

142450746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238.

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 142450746 is about 11935.2731849757. The cubic root of 142450746 is about 522.2617776554.

The spelling of 142450746 in words is "one hundred forty-two million, four hundred fifty thousand, seven hundred forty-six".

Divisors: 1 2 3 6 79 158 237 397 474 757 794 1191 1514 2271 2382 4542 31363 59803 62726 94089 119606 179409 188178 300529 358818 601058 901587 1803174 23741791 47483582 71225373 142450746