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142672894 = 2713799923
BaseRepresentation
bin10001000000100…
…00001111111110
3100221110112102021
420200100033332
5243011013034
622053550354
73351461650
oct1040201776
9327415367
10142672894
1173598291
123b9453ba
1323734b40
1414d3c6d0
15c7d36b4
hex88103fe

142672894 has 32 divisors (see below), whose sum is σ = 266757120. Its totient is φ = 55721952.

The previous prime is 142672877. The next prime is 142672897. The reversal of 142672894 is 498276241.

It is a self number, because there is not a number n which added to its sum of digits gives 142672894.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142672897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9417 + ... + 19339.

It is an arithmetic number, because the mean of its divisors is an integer number (8336160).

Almost surely, 2142672894 is an apocalyptic number.

142672894 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

142672894 is a deficient number, since it is larger than the sum of its proper divisors (124084226).

142672894 is a wasteful number, since it uses less digits than its factorization.

142672894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10024.

The product of its digits is 193536, while the sum is 43.

The square root of 142672894 is about 11944.5759238242. The cubic root of 142672894 is about 522.5331209211.

It can be divided in two parts, 14267 and 2894, that added together give a square (17161 = 1312).

The spelling of 142672894 in words is "one hundred forty-two million, six hundred seventy-two thousand, eight hundred ninety-four".

Divisors: 1 2 7 13 14 26 79 91 158 182 553 1027 1106 2054 7189 9923 14378 19846 69461 128999 138922 257998 783917 902993 1567834 1805986 5487419 10190921 10974838 20381842 71336447 142672894