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1312000234 = 219931710399
BaseRepresentation
bin100111000110011…
…1000100011101010
310101102202111222021
41032030320203222
510141333001414
6334104415054
744340550366
oct11614704352
93342674867
101312000234
11613654216
1230747748a
1317ba7a0cc
14c63662a6
157a2b0c24
hex4e3388ea

1312000234 has 16 divisors (see below), whose sum is σ = 1984320000. Its totient is φ = 650582064.

The previous prime is 1312000181. The next prime is 1312000243. The reversal of 1312000234 is 4320002131.

It is a happy number.

It is a super-2 number, since 2×13120002342 = 3442689228032109512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120967 + ... + 131365.

It is an arithmetic number, because the mean of its divisors is an integer number (124020000).

Almost surely, 21312000234 is an apocalyptic number.

1312000234 is a deficient number, since it is larger than the sum of its proper divisors (672319766).

1312000234 is a wasteful number, since it uses less digits than its factorization.

1312000234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10917.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1312000234 is about 36221.5437826717. The cubic root of 1312000234 is about 1094.7408000434.

Adding to 1312000234 its reverse (4320002131), we get a palindrome (5632002365).

The spelling of 1312000234 in words is "one billion, three hundred twelve million, two hundred thirty-four", and thus it is an aban number.

Divisors: 1 2 199 317 398 634 10399 20798 63083 126166 2069401 3296483 4138802 6592966 656000117 1312000234