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142490818 = 23153103421
BaseRepresentation
bin10000111111000…
…11110011000010
3100221010021122201
420133203303002
5242434201233
622050023414
73350103061
oct1037436302
9327107581
10142490818
1173483508
123b877b6a
132369ccc2
1414cd21d8
15c79977d
hex87e3cc2

142490818 has 32 divisors (see below), whose sum is σ = 227515392. Its totient is φ = 66830400.

The previous prime is 142490809. The next prime is 142490837. The reversal of 142490818 is 818094241.

142490818 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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, 338248 + ... + 338668.

It is an arithmetic number, because the mean of its divisors is an integer number (7109856).

Almost surely, 2142490818 is an apocalyptic number.

142490818 is a deficient number, since it is larger than the sum of its proper divisors (85024574).

142490818 is a wasteful number, since it uses less digits than its factorization.

142490818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610.

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 142490818 is about 11936.9517884592. The cubic root of 142490818 is about 522.3107445497.

The spelling of 142490818 in words is "one hundred forty-two million, four hundred ninety thousand, eight hundred eighteen".

Divisors: 1 2 31 53 62 103 106 206 421 842 1643 3193 3286 5459 6386 10918 13051 22313 26102 43363 44626 86726 169229 338458 691703 1344253 1383406 2298239 2688506 4596478 71245409 142490818