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142195834 = 2118972623
BaseRepresentation
bin10000111100110…
…11110001111010
3100220120022000101
420132123301322
5242400231314
622035430014
73344434054
oct1036336172
9326508011
10142195834
11732a1920
123b75530a
13235c8961
1414c568d4
15c73c174
hex879bc7a

142195834 has 16 divisors (see below), whose sum is σ = 235301760. Its totient is φ = 63907360.

The previous prime is 142195817. The next prime is 142195877. The reversal of 142195834 is 438591241.

It is a junction number, because it is equal to n+sod(n) for n = 142195793 and 142195802.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34354 + ... + 38269.

It is an arithmetic number, because the mean of its divisors is an integer number (14706360).

Almost surely, 2142195834 is an apocalyptic number.

142195834 is a deficient number, since it is larger than the sum of its proper divisors (93105926).

142195834 is a wasteful number, since it uses less digits than its factorization.

142195834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72725.

The product of its digits is 34560, while the sum is 37.

The square root of 142195834 is about 11924.5894688245. The cubic root of 142195834 is about 521.9500669099.

The spelling of 142195834 in words is "one hundred forty-two million, one hundred ninety-five thousand, eight hundred thirty-four".

Divisors: 1 2 11 22 89 178 979 1958 72623 145246 798853 1597706 6463447 12926894 71097917 142195834