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22123021430 = 252212302143
BaseRepresentation
bin10100100110101000…
…101000010001110110
32010002210100221011002
4110212220220101312
5330301443141210
614055125043302
71412141402516
oct244650502166
963083327132
1022123021430
119422961494
124354b56532
132117496233
1410dc245846
1589732e4a5
hex526a28476

22123021430 has 8 divisors (see below), whose sum is σ = 39821438592. Its totient is φ = 8849208568.

The previous prime is 22123021429. The next prime is 22123021439. The reversal of 22123021430 is 3412032122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22123021439) 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, 1106151062 + ... + 1106151081.

It is an arithmetic number, because the mean of its divisors is an integer number (4977679824).

Almost surely, 222123021430 is an apocalyptic number.

22123021430 is a deficient number, since it is larger than the sum of its proper divisors (17698417162).

22123021430 is a wasteful number, since it uses less digits than its factorization.

22123021430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2212302150.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 22123021430 its reverse (3412032122), we get a palindrome (25535053552).

The spelling of 22123021430 in words is "twenty-two billion, one hundred twenty-three million, twenty-one thousand, four hundred thirty".

Divisors: 1 2 5 10 2212302143 4424604286 11061510715 22123021430