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142641270 = 2335737237
BaseRepresentation
bin10001000000010…
…00100001110110
3100221101221001000
420200020201312
5243004010040
622053144130
73351300522
oct1040104166
9327357030
10142641270
1173576552
123b92b046
1323723625
1414d30d82
15c7c9130
hex8808876

142641270 has 64 divisors (see below), whose sum is σ = 385640640. Its totient is φ = 37511424.

The previous prime is 142641269. The next prime is 142641307. The reversal of 142641270 is 72146241.

142641270 is a `hidden beast` number, since 14 + 2 + 641 + 2 + 7 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16092 + ... + 23328.

It is an arithmetic number, because the mean of its divisors is an integer number (6025635).

Almost surely, 2142641270 is an apocalyptic number.

142641270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 142641270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192820320).

142641270 is an abundant number, since it is smaller than the sum of its proper divisors (242999370).

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

142641270 is a wasteful number, since it uses less digits than its factorization.

142641270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7326 (or 7320 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 142641270 is about 11943.2520696835. The cubic root of 142641270 is about 522.4945109044.

The spelling of 142641270 in words is "one hundred forty-two million, six hundred forty-one thousand, two hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 73 90 135 146 219 270 365 438 657 730 1095 1314 1971 2190 3285 3942 6570 7237 9855 14474 19710 21711 36185 43422 65133 72370 108555 130266 195399 217110 325665 390798 528301 651330 976995 1056602 1584903 1953990 2641505 3169806 4754709 5283010 7924515 9509418 14264127 15849030 23773545 28528254 47547090 71320635 142641270