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140707908 = 223311831427
BaseRepresentation
bin10000110001100…
…00100001000100
3100210202200222000
420120300201010
5242010123113
621543505300
73325666065
oct1030604104
9323680860
10140707908
1172475a30
123b158230
13231c7623
141498a56c
15c546373
hex8630844

140707908 has 96 divisors (see below), whose sum is σ = 403038720. Its totient is φ = 42095520.

The previous prime is 140707877. The next prime is 140707933. The reversal of 140707908 is 809707041.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 97891 + ... + 99317.

It is an arithmetic number, because the mean of its divisors is an integer number (4198320).

Almost surely, 2140707908 is an apocalyptic number.

140707908 is a gapful number since it is divisible by the number (18) 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 140707908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201519360).

140707908 is an abundant number, since it is smaller than the sum of its proper divisors (262330812).

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

140707908 is a wasteful number, since it uses less digits than its factorization.

140707908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534 (or 1526 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 140707908 is about 11862.0364187605. The cubic root of 140707908 is about 520.1231315907.

The spelling of 140707908 in words is "one hundred forty million, seven hundred seven thousand, nine hundred eight".

Divisors: 1 2 3 4 6 9 11 12 18 22 27 33 36 44 54 66 83 99 108 132 166 198 249 297 332 396 498 594 747 913 996 1188 1427 1494 1826 2241 2739 2854 2988 3652 4281 4482 5478 5708 8217 8562 8964 10956 12843 15697 16434 17124 24651 25686 31394 32868 38529 47091 49302 51372 62788 77058 94182 98604 118441 141273 154116 188364 236882 282546 355323 423819 473764 565092 710646 847638 1065969 1302851 1421292 1695276 2131938 2605702 3197907 3908553 4263876 5211404 6395814 7817106 11725659 12791628 15634212 23451318 35176977 46902636 70353954 140707908