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142031043 = 33711531289
BaseRepresentation
bin10000111011100…
…11100011000011
3100220020220222000
420131303203003
5242324443133
622032115043
73343146450
oct1035634303
9326226860
10142031043
117319a030
123b695a83
132356b94b
1414c12827
15c708413
hex87738c3

142031043 has 64 divisors (see below), whose sum is σ = 267494400. Its totient is φ = 72334080.

The previous prime is 142031017. The next prime is 142031059. The reversal of 142031043 is 340130241.

142031043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142031043 - 217 = 141899971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142031143) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 109543 + ... + 110831.

It is an arithmetic number, because the mean of its divisors is an integer number (4179600).

Almost surely, 2142031043 is an apocalyptic number.

142031043 is a deficient number, since it is larger than the sum of its proper divisors (125463357).

142031043 is a wasteful number, since it uses less digits than its factorization.

142031043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369 (or 1363 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 142031043 is about 11917.6777519784. The cubic root of 142031043 is about 521.7483593558.

Adding to 142031043 its reverse (340130241), we get a palindrome (482161284).

The spelling of 142031043 in words is "one hundred forty-two million, thirty-one thousand, forty-three".

Divisors: 1 3 7 9 11 21 27 33 53 63 77 99 159 189 231 297 371 477 583 693 1113 1289 1431 1749 2079 3339 3867 4081 5247 9023 10017 11601 12243 14179 15741 27069 34803 36729 42537 68317 81207 99253 110187 127611 204951 243621 297759 382833 478219 614853 751487 893277 1434657 1844559 2254461 2679831 4303971 5260409 6763383 12911913 15781227 20290149 47343681 142031043