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19134721668053 = 173120192094361
BaseRepresentation
bin1000101100111001001100…
…10010011011001111010101
32111202021001122121220201002
410112130212102123033111
510002000402221334203
6104410211512313045
74013303145402155
oct426344622331725
974667048556632
1019134721668053
116107a985a4382
12219052b6a2785
13a8a520199254
144a21a840c765
15232b10c5ad88
hex11672649b3d5

19134721668053 has 8 divisors (see below), whose sum is σ = 19261351623576. Its totient is φ = 19008275904000.

The previous prime is 19134721667989. The next prime is 19134721668061. The reversal of 19134721668053 is 35086612743191.

It can be written as a sum of positive squares in 4 ways, for example, as 4993647214609 + 14141074453444 = 2234647^2 + 3760462^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19134721668053 - 26 = 19134721667989 is a prime.

It is a super-2 number, since 2×191347216680532 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19134721668053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19134721661053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45839408 + ... + 46254953.

It is an arithmetic number, because the mean of its divisors is an integer number (2407668952947).

It is a 1-persistent number, because it is pandigital, but 2⋅19134721668053 = 38269443336106 is not.

Almost surely, 219134721668053 is an apocalyptic number.

It is an amenable number.

19134721668053 is a deficient number, since it is larger than the sum of its proper divisors (126629955523).

19134721668053 is a wasteful number, since it uses less digits than its factorization.

19134721668053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92095735.

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 19134721668053 in words is "nineteen trillion, one hundred thirty-four billion, seven hundred twenty-one million, six hundred sixty-eight thousand, fifty-three".

Divisors: 1 173 1201 207773 92094361 15932324453 110605327561 19134721668053