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140165260 = 22531331683
BaseRepresentation
bin10000101101011…
…00000010001100
3100202202010120221
420112230002030
5241340242020
621524121124
73321246034
oct1026540214
9322663527
10140165260
1172135264
123ab361a4
1323067631
14148888c4
15c48a6aa
hex85ac08c

140165260 has 48 divisors (see below), whose sum is σ = 305206272. Its totient is φ = 54014400.

The previous prime is 140165257. The next prime is 140165281. The reversal of 140165260 is 62561041.

It is a super-3 number, since 3×1401652603 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204879 + ... + 205561.

It is an arithmetic number, because the mean of its divisors is an integer number (6358464).

Almost surely, 2140165260 is an apocalyptic number.

140165260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140165260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152603136).

140165260 is an abundant number, since it is smaller than the sum of its proper divisors (165041012).

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

140165260 is a wasteful number, since it uses less digits than its factorization.

140165260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054 (or 1052 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 140165260 is about 11839.1410161380. The cubic root of 140165260 is about 519.4536421256.

The spelling of 140165260 in words is "one hundred forty million, one hundred sixty-five thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 331 620 662 683 1324 1366 1655 2732 3310 3415 6620 6830 10261 13660 20522 21173 41044 42346 51305 84692 102610 105865 205220 211730 226073 423460 452146 904292 1130365 2260730 4521460 7008263 14016526 28033052 35041315 70082630 140165260