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406061797 = 1787227231
BaseRepresentation
bin11000001101000…
…000001011100101
31001022002002001211
4120031000023211
51312422434142
6104143151421
713030316431
oct3015001345
91038062054
10406061797
11199236269
12b3ba5571
136618476b
143bd019c1
15259ae917
hex183402e5

406061797 has 4 divisors (see below), whose sum is σ = 406290816. Its totient is φ = 405832780.

The previous prime is 406061783. The next prime is 406061809. The reversal of 406061797 is 797160604.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-406061797 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406061707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111829 + ... + 115402.

It is an arithmetic number, because the mean of its divisors is an integer number (101572704).

Almost surely, 2406061797 is an apocalyptic number.

It is an amenable number.

406061797 is a deficient number, since it is larger than the sum of its proper divisors (229019).

406061797 is a wasteful number, since it uses less digits than its factorization.

406061797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229018.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 406061797 is about 20150.9750880696. The cubic root of 406061797 is about 740.5096300724.

The spelling of 406061797 in words is "four hundred six million, sixty-one thousand, seven hundred ninety-seven".

Divisors: 1 1787 227231 406061797