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406061031 = 3177961981
BaseRepresentation
bin11000001100111…
…111111111100111
31001022002001000110
4120030333333213
51312422423111
6104143144103
713030314255
oct3014777747
91038061013
10406061031
11199235732
12b3ba5033
13661842cc
143bd015d5
15259ae5a6
hex1833ffe7

406061031 has 8 divisors (see below), whose sum is σ = 573262704. Its totient is φ = 254783360.

The previous prime is 406061009. The next prime is 406061039. The reversal of 406061031 is 130160604.

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 406061031 - 213 = 406052839 is a prime.

It is a super-2 number, since 2×4060610312 = 329771121793565922, which contains 22 as substring.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 406060989 and 406061007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406061039) 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, 3980940 + ... + 3981041.

It is an arithmetic number, because the mean of its divisors is an integer number (71657838).

Almost surely, 2406061031 is an apocalyptic number.

406061031 is a deficient number, since it is larger than the sum of its proper divisors (167201673).

406061031 is a wasteful number, since it uses less digits than its factorization.

406061031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7962001.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 406061031 is about 20150.9560815362. The cubic root of 406061031 is about 740.5091644366.

The spelling of 406061031 in words is "four hundred six million, sixty-one thousand, thirty-one".

Divisors: 1 3 17 51 7961981 23885943 135353677 406061031