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1223120130 = 235193211247
BaseRepresentation
bin100100011100111…
…0101010100000010
310011020111221101120
41020321311110002
510001104321010
6321211413110
742211230621
oct11071652402
93136457346
101223120130
11578468291
122a1754196
1316652ab2b
14b862b6b8
15725a5e70
hex48e75502

1223120130 has 32 divisors (see below), whose sum is σ = 2950712064. Its totient is φ = 324473856.

The previous prime is 1223120123. The next prime is 1223120141. The reversal of 1223120130 is 310213221.

It is a super-2 number, since 2×12231201302 = 2992045704822433800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

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 15 ways as a sum of consecutive naturals, for example, 99834 + ... + 111413.

It is an arithmetic number, because the mean of its divisors is an integer number (92209752).

Almost surely, 21223120130 is an apocalyptic number.

1223120130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1223120130 is an abundant number, since it is smaller than the sum of its proper divisors (1727591934).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1223120130 is a wasteful number, since it uses less digits than its factorization.

1223120130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211450.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1223120130 is about 34973.1344034246. The cubic root of 1223120130 is about 1069.4398704556.

Adding to 1223120130 its reverse (310213221), we get a palindrome (1533333351).

The spelling of 1223120130 in words is "one billion, two hundred twenty-three million, one hundred twenty thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 193 386 579 965 1158 1930 2895 5790 211247 422494 633741 1056235 1267482 2112470 3168705 6337410 40770671 81541342 122312013 203853355 244624026 407706710 611560065 1223120130