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22050131357 = 47469151731
BaseRepresentation
bin10100100010010010…
…100100110110011101
32002220201012201202202
4110202102210312131
5330124313200412
614044002501245
71410265011152
oct244222446635
962821181682
1022050131357
1193957a7061
124334664825
132105355107
1410d26b0229
15890c323c2
hex5224a4d9d

22050131357 has 4 divisors (see below), whose sum is σ = 22519283136. Its totient is φ = 21580979580.

The previous prime is 22050131317. The next prime is 22050131359. The reversal of 22050131357 is 75313105022.

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 not a de Polignac number, because 22050131357 - 224 = 22033354141 is a prime.

It is a super-2 number, since 2×220501313572 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22050131359) 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, 234575819 + ... + 234575912.

It is an arithmetic number, because the mean of its divisors is an integer number (5629820784).

Almost surely, 222050131357 is an apocalyptic number.

It is an amenable number.

22050131357 is a deficient number, since it is larger than the sum of its proper divisors (469151779).

22050131357 is an equidigital number, since it uses as much as digits as its factorization.

22050131357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469151778.

The product of its (nonzero) digits is 6300, while the sum is 29.

Adding to 22050131357 its reverse (75313105022), we get a palindrome (97363236379).

The spelling of 22050131357 in words is "twenty-two billion, fifty million, one hundred thirty-one thousand, three hundred fifty-seven".

Divisors: 1 47 469151731 22050131357