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221434013433 = 373811337811
BaseRepresentation
bin1100111000111001111…
…1101110011011111001
3210011120010011101100210
43032032133232123321
512111444101412213
6245420403221333
721666225026043
oct3161637563371
9704503141323
10221434013433
1185a00800796
1236ab9977849
1317b5bb24269
14aa08a10a93
155b600530c3
hex338e7ee6f9

221434013433 has 4 divisors (see below), whose sum is σ = 295245351248. Its totient is φ = 147622675620.

The previous prime is 221434013387. The next prime is 221434013441. The reversal of 221434013433 is 334310434122.

It is a happy number.

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 not a de Polignac number, because 221434013433 - 26 = 221434013369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221434013433.

It is not an unprimeable number, because it can be changed into a prime (221434013033) 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, 36905668903 + ... + 36905668908.

It is an arithmetic number, because the mean of its divisors is an integer number (73811337812).

Almost surely, 2221434013433 is an apocalyptic number.

It is an amenable number.

221434013433 is a deficient number, since it is larger than the sum of its proper divisors (73811337815).

221434013433 is an equidigital number, since it uses as much as digits as its factorization.

221434013433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73811337814.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 221434013433 its reverse (334310434122), we get a palindrome (555744447555).

The spelling of 221434013433 in words is "two hundred twenty-one billion, four hundred thirty-four million, thirteen thousand, four hundred thirty-three".

Divisors: 1 3 73811337811 221434013433