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193061401 = 13176114321
BaseRepresentation
bin10111000000111…
…10001000011001
3111110021112110021
423200132020121
5343410431101
631053550441
74532665141
oct1340361031
9443245407
10193061401
1199a83985
12547a5421
1330cc8020
141b8d7921
1511e385a1
hexb81e219

193061401 has 16 divisors (see below), whose sum is σ = 223766928. Its totient is φ = 164966400.

The previous prime is 193061387. The next prime is 193061411. The reversal of 193061401 is 104160391.

It can be written as a sum of positive squares in 8 ways, for example, as 78057225 + 115004176 = 8835^2 + 10724^2 .

It is a cyclic number.

It is not a de Polignac number, because 193061401 - 225 = 159506969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (193061411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6321 + ... + 20641.

It is an arithmetic number, because the mean of its divisors is an integer number (13985433).

Almost surely, 2193061401 is an apocalyptic number.

It is an amenable number.

193061401 is a deficient number, since it is larger than the sum of its proper divisors (30705527).

193061401 is a wasteful number, since it uses less digits than its factorization.

193061401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14412.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 193061401 is about 13894.6536840614. The cubic root of 193061401 is about 577.9609343296.

The spelling of 193061401 in words is "one hundred ninety-three million, sixty-one thousand, four hundred one".

Divisors: 1 13 17 61 221 793 1037 13481 14321 186173 243457 873581 3164941 11356553 14850877 193061401