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1321230233310 = 235133387769829
BaseRepresentation
bin10011001110011111011…
…101010110111011011110
311200022022210210001022120
4103032133131112323132
5133121334414431220
62450544221123410
7164312213453331
oct23163735267336
94608283701276
101321230233310
1146a370027759
121940913b9566
139778c620780
1447d3add0618
152457cb9ea40
hex1339f756ede

1321230233310 has 32 divisors (see below), whose sum is σ = 3414871988640. Its totient is φ = 325225903488.

The previous prime is 1321230233291. The next prime is 1321230233311. The reversal of 1321230233310 is 133320321231.

It is a super-2 number, since 2×13212302333102 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321230233311) 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, 1693884525 + ... + 1693885304.

It is an arithmetic number, because the mean of its divisors is an integer number (106714749645).

Almost surely, 21321230233310 is an apocalyptic number.

1321230233310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321230233310 is an abundant number, since it is smaller than the sum of its proper divisors (2093641755330).

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

1321230233310 is a wasteful number, since it uses less digits than its factorization.

1321230233310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3387769852.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 1321230233310 its reverse (133320321231), we get a palindrome (1454550554541).

The spelling of 1321230233310 in words is "one trillion, three hundred twenty-one billion, two hundred thirty million, two hundred thirty-three thousand, three hundred ten".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 3387769829 6775539658 10163309487 16938849145 20326618974 33877698290 44041007777 50816547435 88082015554 101633094870 132123023331 220205038885 264246046662 440410077770 660615116655 1321230233310