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142875117 = 33711193617
BaseRepresentation
bin10001000010000…
…01100111101101
3100221211210211000
420201001213231
5243034000432
622102150513
73353263350
oct1041014755
9327753730
10142875117
1173716210
123ba22439
13237a5bb8
1414d92297
15c82357c
hex88419ed

142875117 has 64 divisors (see below), whose sum is σ = 277862400. Its totient is φ = 70295040.

The previous prime is 142875107. The next prime is 142875151. The reversal of 142875117 is 711578241.

It is not a de Polignac number, because 142875117 - 27 = 142874989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142875107) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 37693 + ... + 41309.

It is an arithmetic number, because the mean of its divisors is an integer number (4341600).

Almost surely, 2142875117 is an apocalyptic number.

It is an amenable number.

142875117 is a deficient number, since it is larger than the sum of its proper divisors (134987283).

142875117 is a wasteful number, since it uses less digits than its factorization.

142875117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3663 (or 3657 counting only the distinct ones).

The product of its digits is 15680, while the sum is 36.

The square root of 142875117 is about 11953.0379820362. The cubic root of 142875117 is about 522.7798819498.

The spelling of 142875117 in words is "one hundred forty-two million, eight hundred seventy-five thousand, one hundred seventeen".

Divisors: 1 3 7 9 11 19 21 27 33 57 63 77 99 133 171 189 209 231 297 399 513 627 693 1197 1463 1881 2079 3591 3617 4389 5643 10851 13167 25319 32553 39501 39787 68723 75957 97659 119361 206169 227871 278509 358083 481061 618507 683613 755953 835527 1074249 1443183 1855521 2267859 2506581 4329549 5291671 6803577 7519743 12988647 15875013 20410731 47625039 142875117