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142717652 = 227111797281
BaseRepresentation
bin10001000000110…
…11001011010100
3100221112210210222
420200123023110
5243013431102
622054533512
73352036310
oct1040331324
9327483728
10142717652
1173618980
123b967298
132374c31c
1414d50b40
15c7e1aa2
hex881b2d4

142717652 has 96 divisors (see below), whose sum is σ = 334285056. Its totient is φ = 51609600.

The previous prime is 142717649. The next prime is 142717661. The reversal of 142717652 is 256717241.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 507752 + ... + 508032.

It is an arithmetic number, because the mean of its divisors is an integer number (3482136).

Almost surely, 2142717652 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142717652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167142528).

142717652 is an abundant number, since it is smaller than the sum of its proper divisors (191567404).

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

142717652 is a wasteful number, since it uses less digits than its factorization.

142717652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417 (or 415 counting only the distinct ones).

The product of its digits is 23520, while the sum is 35.

The square root of 142717652 is about 11946.4493469817. The cubic root of 142717652 is about 522.5877566022.

The spelling of 142717652 in words is "one hundred forty-two million, seven hundred seventeen thousand, six hundred fifty-two".

Divisors: 1 2 4 7 11 14 17 22 28 34 44 68 77 97 119 154 187 194 238 281 308 374 388 476 562 679 748 1067 1124 1309 1358 1649 1967 2134 2618 2716 3091 3298 3934 4268 4777 5236 6182 6596 7469 7868 9554 11543 12364 14938 18139 19108 21637 23086 27257 29876 33439 36278 43274 46172 52547 54514 66878 72556 86548 105094 109028 126973 133756 190799 210188 253946 299827 367829 381598 463369 507892 599654 735658 763196 926738 1199308 1471316 1853476 2098789 3243583 4197578 5097059 6487166 8395156 10194118 12974332 20388236 35679413 71358826 142717652