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140830007 = 613229739
BaseRepresentation
bin10000110010011…
…10010100110111
3100210222220110012
420121032110313
5242023030012
621550250435
73330015053
oct1031162467
9323886405
10140830007
117254973a
123b1b6a1b
132323b086
14149bcc63
15c56c622
hex864e537

140830007 has 4 divisors (see below), whose sum is σ = 141060360. Its totient is φ = 140599656.

The previous prime is 140829967. The next prime is 140830013. The reversal of 140830007 is 700038041.

It is a happy number.

140830007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 700038041 = 3697189353.

It is a cyclic number.

It is not a de Polignac number, because 140830007 - 214 = 140813623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140830097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114257 + ... + 115482.

It is an arithmetic number, because the mean of its divisors is an integer number (35265090).

Almost surely, 2140830007 is an apocalyptic number.

140830007 is a deficient number, since it is larger than the sum of its proper divisors (230353).

140830007 is an equidigital number, since it uses as much as digits as its factorization.

140830007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230352.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 140830007 is about 11867.1819316972. The cubic root of 140830007 is about 520.2735333574.

Adding to 140830007 its reverse (700038041), we get a palindrome (840868048).

The spelling of 140830007 in words is "one hundred forty million, eight hundred thirty thousand, seven".

Divisors: 1 613 229739 140830007