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1312232052144 = 243132518378231
BaseRepresentation
bin10011000110000111001…
…000000001010110110000
311122110002201010002021110
4103012013020001112300
5132444422401132034
62442455302553320
7163543222256106
oct23060710012660
94573081102243
101312232052144
11466572868aa2
1219239ba38840
1396987359310
1447725d2dc76
1524202c31de9
hex131872015b0

1312232052144 has 80 divisors (see below), whose sum is σ = 3665241909504. Its totient is φ = 402155040000.

The previous prime is 1312232052127. The next prime is 1312232052149. The reversal of 1312232052144 is 4412502322131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1312232052149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4032492 + ... + 4345739.

Almost surely, 21312232052144 is an apocalyptic number.

It is an amenable number.

1312232052144 is an abundant number, since it is smaller than the sum of its proper divisors (2353009857360).

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

1312232052144 is a wasteful number, since it uses less digits than its factorization.

1312232052144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8378506 (or 8378500 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 1312232052144 its reverse (4412502322131), we get a palindrome (5724734374275).

The spelling of 1312232052144 in words is "one trillion, three hundred twelve billion, two hundred thirty-two million, fifty-two thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 39 48 52 78 104 156 208 251 312 502 624 753 1004 1506 2008 3012 3263 4016 6024 6526 9789 12048 13052 19578 26104 39156 52208 78312 156624 8378231 16756462 25134693 33512924 50269386 67025848 100538772 108917003 134051696 201077544 217834006 326751009 402155088 435668012 653502018 871336024 1307004036 1742672048 2102935981 2614008072 4205871962 5228016144 6308807943 8411743924 12617615886 16823487848 25235231772 27338167753 33646975696 50470463544 54676335506 82014503259 100940927088 109352671012 164029006518 218705342024 328058013036 437410684048 656116026072 1312232052144