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1220102422 = 2711471011669
BaseRepresentation
bin100100010111001…
…0100100100010110
310011000211121212121
41020232110210112
54444321234142
6321023010154
742143461630
oct11056244426
93130747777
101220102422
11576797010
122a073995a
13165a123c6
14b8083a50
15721abc67
hex48b94916

1220102422 has 64 divisors (see below), whose sum is σ = 2354780160. Its totient is φ = 460368000.

The previous prime is 1220102381. The next prime is 1220102437. The reversal of 1220102422 is 2242010221.

It is a junction number, because it is equal to n+sod(n) for n = 1220102396 and 1220102405.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 730204 + ... + 731872.

It is an arithmetic number, because the mean of its divisors is an integer number (36793440).

Almost surely, 21220102422 is an apocalyptic number.

1220102422 is a deficient number, since it is larger than the sum of its proper divisors (1134677738).

1220102422 is a wasteful number, since it uses less digits than its factorization.

1220102422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1220102422 is about 34929.9645290401. The cubic root of 1220102422 is about 1068.5596312116.

Adding to 1220102422 its reverse (2242010221), we get a palindrome (3462112643).

The spelling of 1220102422 in words is "one billion, two hundred twenty million, one hundred two thousand, four hundred twenty-two".

Divisors: 1 2 7 11 14 22 47 77 94 101 154 202 329 517 658 707 1034 1111 1414 1669 2222 3338 3619 4747 7238 7777 9494 11683 15554 18359 23366 33229 36718 52217 66458 78443 104434 128513 156886 168569 257026 337138 365519 549101 731038 862873 1098202 1179983 1725746 1854259 2359966 3708518 6040111 7922743 12080222 12979813 15845486 25959626 55459201 87150173 110918402 174300346 610051211 1220102422