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140107001 = 155390217
BaseRepresentation
bin10000101100111…
…01110011111001
3100202122011200012
420112131303321
5241331411001
621522551305
73320614136
oct1026356371
9322564605
10140107001
11720a5511
123ab08535
1323046c68
141487158d
15c4782bb
hex859dcf9

140107001 has 4 divisors (see below), whose sum is σ = 140198772. Its totient is φ = 140015232.

The previous prime is 140106971. The next prime is 140107003. The reversal of 140107001 is 100701041.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 68873401 + 71233600 = 8299^2 + 8440^2 .

It is a cyclic number.

It is not a de Polignac number, because 140107001 - 26 = 140106937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140107003) 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, 43556 + ... + 46661.

It is an arithmetic number, because the mean of its divisors is an integer number (35049693).

Almost surely, 2140107001 is an apocalyptic number.

It is an amenable number.

140107001 is a deficient number, since it is larger than the sum of its proper divisors (91771).

140107001 is an equidigital number, since it uses as much as digits as its factorization.

140107001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91770.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 140107001 is about 11836.6803200898. The cubic root of 140107001 is about 519.3816627027.

Adding to 140107001 its reverse (100701041), we get a palindrome (240808042).

The spelling of 140107001 in words is "one hundred forty million, one hundred seven thousand, one".

Divisors: 1 1553 90217 140107001