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142658992 = 24721961157
BaseRepresentation
bin10001000000011…
…00110110110000
3100221102211100101
420200030312300
5243010041432
622053402144
73351403300
oct1040146660
9327384311
10142658992
11735888a3
123b939354
132372b708
1414d37600
15c7ce4e7
hex880cdb0

142658992 has 120 divisors (see below), whose sum is σ = 346190640. Its totient is φ = 56609280.

The previous prime is 142658983. The next prime is 142659029. The reversal of 142658992 is 299856241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 908578 + ... + 908734.

It is an arithmetic number, because the mean of its divisors is an integer number (2884922).

Almost surely, 2142658992 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 142658992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173095320).

142658992 is an abundant number, since it is smaller than the sum of its proper divisors (203531648).

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

142658992 is a wasteful number, since it uses less digits than its factorization.

142658992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259 (or 246 counting only the distinct ones).

The product of its digits is 311040, while the sum is 46.

The square root of 142658992 is about 11943.9939718672. The cubic root of 142658992 is about 522.5161485512.

The spelling of 142658992 in words is "one hundred forty-two million, six hundred fifty-eight thousand, nine hundred ninety-two".

Divisors: 1 2 4 7 8 14 16 19 28 38 49 56 61 76 98 112 122 133 152 157 196 244 266 304 314 392 427 488 532 628 784 854 931 976 1064 1099 1159 1256 1708 1862 2128 2198 2318 2512 2983 2989 3416 3724 4396 4636 5966 5978 6832 7448 7693 8113 8792 9272 9577 11932 11956 14896 15386 16226 17584 18544 19154 20881 23864 23912 30772 32452 38308 41762 47728 47824 56791 61544 64904 67039 76616 83524 113582 123088 129808 134078 146167 153232 167048 181963 227164 268156 292334 334096 363926 454328 469273 536312 584668 727852 908656 938546 1072624 1169336 1273741 1455704 1877092 2338672 2547482 2911408 3754184 5094964 7508368 8916187 10189928 17832374 20379856 35664748 71329496 142658992