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BaseRepresentation
bin11111111000100001001110…
…001100111111111011001101
3200101111020010010212101001002
4133320201032030333323031
5121334410013000411341
61214121424224430045
741351543451425501
oct3770411614777315
9611436103771032
10140223404310221
1140752459131091
121388829a478325
1360320197ac13b
14268abc5864301
1511327ec4d629b
hex7f884e33fecd

140223404310221 has 4 divisors (see below), whose sum is σ = 141533903416032. Its totient is φ = 138912905204412.

The previous prime is 140223404310167. The next prime is 140223404310239. The reversal of 140223404310221 is 122013404322041.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-140223404310221 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 (140223404312221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 655249552745 + ... + 655249552958.

It is an arithmetic number, because the mean of its divisors is an integer number (35383475854008).

Almost surely, 2140223404310221 is an apocalyptic number.

It is an amenable number.

140223404310221 is a deficient number, since it is larger than the sum of its proper divisors (1310499105811).

140223404310221 is a wasteful number, since it uses less digits than its factorization.

140223404310221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310499105810.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 140223404310221 its reverse (122013404322041), we get a palindrome (262236808632262).

The spelling of 140223404310221 in words is "one hundred forty trillion, two hundred twenty-three billion, four hundred four million, three hundred ten thousand, two hundred twenty-one".

Divisors: 1 107 1310499105703 140223404310221