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1220230411 = 19761710039
BaseRepresentation
bin100100010111011…
…0011110100001011
310011001002010102221
41020232303310023
54444334333121
6321025434511
742144534031
oct11056636413
93131063387
101220230411
11576874194
122a079ba37
13165a5873a
14b80b8551
15721d4b41
hex48bb3d0b

1220230411 has 8 divisors (see below), whose sum is σ = 1228534560. Its totient is φ = 1211947968.

The previous prime is 1220230373. The next prime is 1220230439. The reversal of 1220230411 is 1140320221.

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

It is a cyclic number.

It is not a de Polignac number, because 1220230411 - 27 = 1220230283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220230111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116530 + ... + 126568.

It is an arithmetic number, because the mean of its divisors is an integer number (153566820).

Almost surely, 21220230411 is an apocalyptic number.

1220230411 is a deficient number, since it is larger than the sum of its proper divisors (8304149).

1220230411 is a wasteful number, since it uses less digits than its factorization.

1220230411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10853.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1220230411 is about 34931.7965612993. The cubic root of 1220230411 is about 1068.5969939483.

Adding to 1220230411 its reverse (1140320221), we get a palindrome (2360550632).

The spelling of 1220230411 in words is "one billion, two hundred twenty million, two hundred thirty thousand, four hundred eleven".

Divisors: 1 197 617 10039 121549 1977683 6194063 1220230411