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142678074 = 23711308827
BaseRepresentation
bin10001000000100…
…01100000111010
3100221110210112010
420200101200322
5243011144244
622054030350
73351513030
oct1040214072
9327423463
10142678074
11735a1170
123b9483b6
13237372c6
1414d40550
15c7d4eb9
hex881183a

142678074 has 32 divisors (see below), whose sum is σ = 355769856. Its totient is φ = 37059120.

The previous prime is 142678069. The next prime is 142678091. The reversal of 142678074 is 470876241.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153952 + ... + 154875.

It is an arithmetic number, because the mean of its divisors is an integer number (11117808).

Almost surely, 2142678074 is an apocalyptic number.

142678074 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

142678074 is an abundant number, since it is smaller than the sum of its proper divisors (213091782).

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

142678074 is a wasteful number, since it uses less digits than its factorization.

142678074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308850.

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 142678074 is about 11944.7927566785. The cubic root of 142678074 is about 522.5394446844.

The spelling of 142678074 in words is "one hundred forty-two million, six hundred seventy-eight thousand, seventy-four".

Divisors: 1 2 3 6 7 11 14 21 22 33 42 66 77 154 231 462 308827 617654 926481 1852962 2161789 3397097 4323578 6485367 6794194 10191291 12970734 20382582 23779679 47559358 71339037 142678074