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142669023 = 3723793739
BaseRepresentation
bin10001000000011…
…11010011011111
3100221110100002220
420200033103133
5243010402043
622053520423
73351444450
oct1040172337
9327410086
10142669023
1173595392
123b943113
1323733153
1414d3b127
15c7d2483
hex880f4df

142669023 has 32 divisors (see below), whose sum is σ = 229785600. Its totient is φ = 76972896.

The previous prime is 142669019. The next prime is 142669027. The reversal of 142669023 is 320966241.

142669023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (142669019) and next prime (142669027).

It is not a de Polignac number, because 142669023 - 22 = 142669019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142669027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36288 + ... + 40026.

It is an arithmetic number, because the mean of its divisors is an integer number (7180800).

Almost surely, 2142669023 is an apocalyptic number.

142669023 is a deficient number, since it is larger than the sum of its proper divisors (87116577).

142669023 is a wasteful number, since it uses less digits than its factorization.

142669023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3851.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 142669023 is about 11944.4138826482. The cubic root of 142669023 is about 522.5283950900.

The spelling of 142669023 in words is "one hundred forty-two million, six hundred sixty-nine thousand, twenty-three".

Divisors: 1 3 7 21 23 69 79 161 237 483 553 1659 1817 3739 5451 11217 12719 26173 38157 78519 85997 257991 295381 601979 886143 1805937 2067667 6203001 6793763 20381289 47556341 142669023