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142690288 = 2413686011
BaseRepresentation
bin10001000000101…
…00011111110000
3100221111102021111
420200110133300
5243012042123
622054203104
73351563446
oct1040243760
9327442244
10142690288
11735aa364
123b953494
132373ca30
1414d44b96
15c7d890d
hex88147f0

142690288 has 20 divisors (see below), whose sum is σ = 297729208. Its totient is φ = 65856960.

The previous prime is 142690283. The next prime is 142690307. The reversal of 142690288 is 882096241.

It is a self number, because there is not a number n which added to its sum of digits gives 142690288.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142690283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342798 + ... + 343213.

Almost surely, 2142690288 is an apocalyptic number.

It is an amenable number.

142690288 is an abundant number, since it is smaller than the sum of its proper divisors (155038920).

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

142690288 is a wasteful number, since it uses less digits than its factorization.

142690288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686032 (or 686026 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 142690288 is about 11945.3040145490. The cubic root of 142690288 is about 522.5543549750.

The spelling of 142690288 in words is "one hundred forty-two million, six hundred ninety thousand, two hundred eighty-eight".

Divisors: 1 2 4 8 13 16 26 52 104 208 686011 1372022 2744044 5488088 8918143 10976176 17836286 35672572 71345144 142690288