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142653824 = 271958657
BaseRepresentation
bin10001000000010…
…11100110000000
3100221102120020222
420200023212000
5243004410244
622053322212
73351352235
oct1040134600
9327376228
10142653824
1173584a25
123b936368
1323729261
1414d3578c
15c7ccbee
hex880b980

142653824 has 32 divisors (see below), whose sum is σ = 299155800. Its totient is φ = 67571712.

The previous prime is 142653821. The next prime is 142653829. The reversal of 142653824 is 428356241.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×1426538242 = 40700227003645952, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142653821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26897 + ... + 31760.

Almost surely, 2142653824 is an apocalyptic number.

It is an amenable number.

142653824 is an abundant number, since it is smaller than the sum of its proper divisors (156501976).

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

142653824 is an equidigital number, since it uses as much as digits as its factorization.

142653824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58690 (or 58678 counting only the distinct ones).

The product of its digits is 46080, while the sum is 35.

The square root of 142653824 is about 11943.7776268650. Note that the first 3 decimals coincide. The cubic root of 142653824 is about 522.5098388752.

The spelling of 142653824 in words is "one hundred forty-two million, six hundred fifty-three thousand, eight hundred twenty-four".

Divisors: 1 2 4 8 16 19 32 38 64 76 128 152 304 608 1216 2432 58657 117314 234628 469256 938512 1114483 1877024 2228966 3754048 4457932 7508096 8915864 17831728 35663456 71326912 142653824