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142022552 = 23716315559
BaseRepresentation
bin10000111011100…
…01011110011000
3100220020111022112
420131301132120
5242324210202
622032011452
73343112630
oct1035613630
9326214275
10142022552
1173193711
123b690b88
1323567b19
1414c0d6c0
15c705b52
hex8771798

142022552 has 32 divisors (see below), whose sum is σ = 306220800. Its totient is φ = 60489504.

The previous prime is 142022527. The next prime is 142022611. The reversal of 142022552 is 255220241.

142022552 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 a congruent number.

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, 1349 + ... + 16907.

It is an arithmetic number, because the mean of its divisors is an integer number (9569400).

Almost surely, 2142022552 is an apocalyptic number.

It is an amenable number.

142022552 is an abundant number, since it is smaller than the sum of its proper divisors (164198248).

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

142022552 is a wasteful number, since it uses less digits than its factorization.

142022552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15735 (or 15731 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 142022552 is about 11917.3215111450. The cubic root of 142022552 is about 521.7379619724.

Adding to 142022552 its reverse (255220241), we get a palindrome (397242793).

The spelling of 142022552 in words is "one hundred forty-two million, twenty-two thousand, five hundred fifty-two".

Divisors: 1 2 4 7 8 14 28 56 163 326 652 1141 1304 2282 4564 9128 15559 31118 62236 108913 124472 217826 435652 871304 2536117 5072234 10144468 17752819 20288936 35505638 71011276 142022552