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140353026 = 231113915299
BaseRepresentation
bin10000101110110…
…01111000000010
3100210002200011020
420113121320002
5241412244101
621532130310
73322660332
oct1027317002
9323080136
10140353026
1172253340
123b006996
1323101c38
14148d70c2
15c4c6136
hex85d9e02

140353026 has 32 divisors (see below), whose sum is σ = 308448000. Its totient is φ = 42222480.

The previous prime is 140353021. The next prime is 140353033. The reversal of 140353026 is 620353041.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 140352987 and 140353005.

It is not an unprimeable number, because it can be changed into a prime (140353021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1525 + ... + 16823.

It is an arithmetic number, because the mean of its divisors is an integer number (9639000).

Almost surely, 2140353026 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140353026, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154224000).

140353026 is an abundant number, since it is smaller than the sum of its proper divisors (168094974).

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

140353026 is a wasteful number, since it uses less digits than its factorization.

140353026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15454.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 140353026 is about 11847.0682449288. The cubic root of 140353026 is about 519.6854927564.

The spelling of 140353026 in words is "one hundred forty million, three hundred fifty-three thousand, twenty-six".

Divisors: 1 2 3 6 11 22 33 66 139 278 417 834 1529 3058 4587 9174 15299 30598 45897 91794 168289 336578 504867 1009734 2126561 4253122 6379683 12759366 23392171 46784342 70176513 140353026