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1344430213420 = 225723218153257
BaseRepresentation
bin10011100100000110010…
…010010000100100101100
311202112012122122011001011
4103210012102100210230
5134011343113312140
62505342301155004
7166063143155320
oct23440622204454
94675178564034
101344430213420
11479195896138
12198686b5ba64
1399a18c5ab58
14490dc297980
1524e89812cea
hex1390649092c

1344430213420 has 72 divisors (see below), whose sum is σ = 3373020562464. Its totient is φ = 440906281728.

The previous prime is 1344430213411. The next prime is 1344430213507. The reversal of 1344430213420 is 243120344431.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9002569 + ... + 9150688.

It is an arithmetic number, because the mean of its divisors is an integer number (46847507812).

Almost surely, 21344430213420 is an apocalyptic number.

1344430213420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1344430213420 is an abundant number, since it is smaller than the sum of its proper divisors (2028590349044).

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

1344430213420 is a wasteful number, since it uses less digits than its factorization.

1344430213420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18153319 (or 18153294 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 1344430213420 its reverse (243120344431), we get a palindrome (1587550557851).

The spelling of 1344430213420 in words is "one trillion, three hundred forty-four billion, four hundred thirty million, two hundred thirteen thousand, four hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 23 28 35 46 70 92 115 140 161 230 322 460 529 644 805 1058 1610 2116 2645 3220 3703 5290 7406 10580 14812 18515 37030 74060 18153257 36306514 72613028 90766285 127072799 181532570 254145598 363065140 417524911 508291196 635363995 835049822 1270727990 1670099644 2087624555 2541455980 2922674377 4175249110 5845348754 8350498220 9603072953 11690697508 14613371885 19206145906 29226743770 38412291812 48015364765 58453487540 67221510671 96030729530 134443021342 192061459060 268886042684 336107553355 672215106710 1344430213420