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142482474 = 23217479907
BaseRepresentation
bin10000111111000…
…01110000101010
3100221002212012200
420133201300222
5242433414344
622045521030
73350036541
oct1037416052
9327085180
10142482474
1173478212
123b873176
1323699274
1414ccd158
15c797069
hex87e1c2a

142482474 has 48 divisors (see below), whose sum is σ = 333859968. Its totient is φ = 43744896.

The previous prime is 142482469. The next prime is 142482499. The reversal of 142482474 is 474284241.

142482474 is a `hidden beast` number, since 142 + 48 + 2 + 474 = 666.

It is a Curzon number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 9429 + ... + 19335.

It is an arithmetic number, because the mean of its divisors is an integer number (6955416).

Almost surely, 2142482474 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142482474, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166929984).

142482474 is an abundant number, since it is smaller than the sum of its proper divisors (191377494).

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

142482474 is a wasteful number, since it uses less digits than its factorization.

142482474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9979 (or 9976 counting only the distinct ones).

The product of its digits is 57344, while the sum is 36.

The square root of 142482474 is about 11936.6022803811. The cubic root of 142482474 is about 522.3005491654.

The spelling of 142482474 in words is "one hundred forty-two million, four hundred eighty-two thousand, four hundred seventy-four".

Divisors: 1 2 3 6 9 17 18 34 47 51 94 102 141 153 282 306 423 799 846 1598 2397 4794 7191 9907 14382 19814 29721 59442 89163 168419 178326 336838 465629 505257 931258 1010514 1396887 1515771 2793774 3031542 4190661 7915693 8381322 15831386 23747079 47494158 71241237 142482474