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140353213 = 71113314523
BaseRepresentation
bin10000101110110…
…01111010111101
3100210002200102011
420113121322331
5241412300323
621532131221
73322661020
oct1027317275
9323080364
10140353213
11722534a0
123b006b11
1323102050
14148d71b7
15c4c620d
hex85d9ebd

140353213 has 32 divisors (see below), whose sum is σ = 194568192. Its totient is φ = 97675200.

The previous prime is 140353211. The next prime is 140353229. The reversal of 140353213 is 312353041.

It is not a de Polignac number, because 140353213 - 21 = 140353211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140353211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28770 + ... + 33292.

It is an arithmetic number, because the mean of its divisors is an integer number (6080256).

Almost surely, 2140353213 is an apocalyptic number.

140353213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

140353213 is a deficient number, since it is larger than the sum of its proper divisors (54214979).

140353213 is a wasteful number, since it uses less digits than its factorization.

140353213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4585.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 140353213 is about 11847.0761371741. The cubic root of 140353213 is about 519.6857235581.

It can be divided in two parts, 140 and 353213, that added together give a palindrome (353353).

The spelling of 140353213 in words is "one hundred forty million, three hundred fifty-three thousand, two hundred thirteen".

Divisors: 1 7 11 13 31 77 91 143 217 341 403 1001 2387 2821 4433 4523 31031 31661 49753 58799 140213 348271 411593 646789 981491 1542343 1822769 4527523 10796401 12759383 20050459 140353213