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1213100001330 = 235710753987539
BaseRepresentation
bin10001101001110010011…
…001010000100000110010
311021222020000200010110220
4101221302121100200302
5124333412100020310
62325142423033510
7153433514606520
oct21516231204062
94258200603426
101213100001330
11428522363a78
1217713489b896
138a519600999
1442a00285310
152184ece2670
hex11a72650832

1213100001330 has 64 divisors (see below), whose sum is σ = 3358456888320. Its totient is φ = 274688593344.

The previous prime is 1213100001299. The next prime is 1213100001343. The reversal of 1213100001330 is 331000013121.

It is a super-2 number, since 2×12131000013302 (a number of 25 digits) 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 polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26971300 + ... + 27016239.

It is an arithmetic number, because the mean of its divisors is an integer number (52475888880).

Almost surely, 21213100001330 is an apocalyptic number.

1213100001330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213100001330 is an abundant number, since it is smaller than the sum of its proper divisors (2145356886990).

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

1213100001330 is a wasteful number, since it uses less digits than its factorization.

1213100001330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53987663.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 1213100001330 its reverse (331000013121), we get a palindrome (1544100014451).

The spelling of 1213100001330 in words is "one trillion, two hundred thirteen billion, one hundred million, one thousand, three hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 107 210 214 321 535 642 749 1070 1498 1605 2247 3210 3745 4494 7490 11235 22470 53987539 107975078 161962617 269937695 323925234 377912773 539875390 755825546 809813085 1133738319 1619626170 1889563865 2267476638 3779127730 5668691595 5776666673 11337383190 11553333346 17330000019 28883333365 34660000038 40436666711 57766666730 80873333422 86650000095 121310000133 173300000190 202183333555 242620000266 404366667110 606550000665 1213100001330