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140120241 = 346706747
BaseRepresentation
bin10000101101000…
…01000010110001
3100202122211211120
420112201002301
5241332321431
621523132453
73321000552
oct1026410261
9322584746
10140120241
1172104458
123ab14129
132304ccb1
1414876329
15c47c196
hex85a10b1

140120241 has 4 divisors (see below), whose sum is σ = 186826992. Its totient is φ = 93413492.

The previous prime is 140120237. The next prime is 140120251. The reversal of 140120241 is 142021041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 142021041 = 347340347.

It is a cyclic number.

It is not a de Polignac number, because 140120241 - 22 = 140120237 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 140120241.

It is not an unprimeable number, because it can be changed into a prime (140120251) 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, 23353371 + ... + 23353376.

It is an arithmetic number, because the mean of its divisors is an integer number (46706748).

Almost surely, 2140120241 is an apocalyptic number.

It is an amenable number.

140120241 is a deficient number, since it is larger than the sum of its proper divisors (46706751).

140120241 is an equidigital number, since it uses as much as digits as its factorization.

140120241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46706750.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 140120241 is about 11837.2395853087. The cubic root of 140120241 is about 519.3980225719.

Adding to 140120241 its reverse (142021041), we get a palindrome (282141282).

The spelling of 140120241 in words is "one hundred forty million, one hundred twenty thousand, two hundred forty-one".

Divisors: 1 3 46706747 140120241