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19094771401 = 109263366533
BaseRepresentation
bin10001110010001000…
…110001011011001001
31211021202011220001121
4101302020301123021
5303101230141101
612434431115241
71244120610316
oct216210613311
954252156047
1019094771401
118109556412
12384a972b21
131a53ca0404
14cd1da7d0d
1576b55a0a1
hex4722316c9

19094771401 has 8 divisors (see below), whose sum is σ = 19277561160. Its totient is φ = 18912120192.

The previous prime is 19094771389. The next prime is 19094771429. The reversal of 19094771401 is 10417749091.

It can be written as a sum of positive squares in 4 ways, for example, as 6387845776 + 12706925625 = 79924^2 + 112725^2 .

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 19094771401 - 27 = 19094771273 is a prime.

It is a super-2 number, since 2×190947714012 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19094778401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253731 + ... + 320263.

It is an arithmetic number, because the mean of its divisors is an integer number (2409695145).

Almost surely, 219094771401 is an apocalyptic number.

It is an amenable number.

19094771401 is a deficient number, since it is larger than the sum of its proper divisors (182789759).

19094771401 is a wasteful number, since it uses less digits than its factorization.

19094771401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69275.

The product of its (nonzero) digits is 63504, while the sum is 43.

The spelling of 19094771401 in words is "nineteen billion, ninety-four million, seven hundred seventy-one thousand, four hundred one".

Divisors: 1 109 2633 66533 286997 7252097 175181389 19094771401