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1214001405145 = 51793534398753
BaseRepresentation
bin10001101010101000000…
…111110101110011011001
311022001112211211012001101
4101222220013311303121
5124342233324431040
62325412103151401
7153465041453134
oct21525007656331
94261484735041
101214001405145
11428945165001
12177346745561
138a631299319
1442a87c8921b
15218a3eea09a
hex11aa81f5cd9

1214001405145 has 32 divisors (see below), whose sum is σ = 1472604883200. Its totient is φ = 960736026624.

The previous prime is 1214001405079. The next prime is 1214001405161. The reversal of 1214001405145 is 5415041004121.

It is a cyclic number.

It is not a de Polignac number, because 1214001405145 - 27 = 1214001405017 is a prime.

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, 138691089 + ... + 138699841.

It is an arithmetic number, because the mean of its divisors is an integer number (46018902600).

Almost surely, 21214001405145 is an apocalyptic number.

It is an amenable number.

1214001405145 is a deficient number, since it is larger than the sum of its proper divisors (258603478055).

1214001405145 is a wasteful number, since it uses less digits than its factorization.

1214001405145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9729.

The product of its (nonzero) digits is 3200, while the sum is 28.

Adding to 1214001405145 its reverse (5415041004121), we get a palindrome (6629042409266).

The spelling of 1214001405145 in words is "one trillion, two hundred fourteen billion, one million, four hundred five thousand, one hundred forty-five".

Divisors: 1 5 179 353 439 895 1765 2195 8753 43765 63187 78581 154967 315935 392905 774835 1566787 3089809 3842567 7833935 15449045 19212835 27739093 138695465 553075811 687819493 1356426151 2765379055 3439097465 6782130755 242800281029 1214001405145