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1220024113 = 71129546361
BaseRepresentation
bin100100010111000…
…0001011100110001
310011000200122110021
41020232001130301
54444311232423
6321021203441
742143014420
oct11056013461
93130618407
101220024113
115767431a0
122a0700581
131659b5879
14b80632b7
157219395d
hex48b81731

1220024113 has 16 divisors (see below), whose sum is σ = 1573522560. Its totient is φ = 917884800.

The previous prime is 1220024111. The next prime is 1220024123. The reversal of 1220024113 is 3114200221.

It is not a de Polignac number, because 1220024113 - 21 = 1220024111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220024111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270948 + ... + 275413.

It is an arithmetic number, because the mean of its divisors is an integer number (98345160).

Almost surely, 21220024113 is an apocalyptic number.

It is an amenable number.

1220024113 is a deficient number, since it is larger than the sum of its proper divisors (353498447).

1220024113 is a wasteful number, since it uses less digits than its factorization.

1220024113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546408.

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

The square root of 1220024113 is about 34928.8435680313. The cubic root of 1220024113 is about 1068.5367698450.

Adding to 1220024113 its reverse (3114200221), we get a palindrome (4334224334).

The spelling of 1220024113 in words is "one billion, two hundred twenty million, twenty-four thousand, one hundred thirteen".

Divisors: 1 7 11 29 77 203 319 2233 546361 3824527 6009971 15844469 42069797 110911283 174289159 1220024113