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31469801 = 112260081
BaseRepresentation
bin111100000001…
…1000011101001
32012012211110012
41320003003221
531024013201
63042301305
7531326456
oct170030351
965184405
1031469801
1116844800
12a657835
13669acac
14427282d
152b695bb
hex1e030e9

31469801 has 6 divisors (see below), whose sum is σ = 34590906. Its totient is φ = 28608800.

The previous prime is 31469797. The next prime is 31469813. The reversal of 31469801 is 10896413.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 20939776 + 10530025 = 4576^2 + 3245^2 .

It is not a de Polignac number, because 31469801 - 22 = 31469797 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31469861) 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 5 ways as a sum of consecutive naturals, for example, 129920 + ... + 130161.

It is an arithmetic number, because the mean of its divisors is an integer number (5765151).

Almost surely, 231469801 is an apocalyptic number.

It is an amenable number.

31469801 is a deficient number, since it is larger than the sum of its proper divisors (3121105).

31469801 is a wasteful number, since it uses less digits than its factorization.

31469801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260103 (or 260092 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 31469801 is about 5609.7950942971. The cubic root of 31469801 is about 315.7170228815.

The spelling of 31469801 in words is "thirty-one million, four hundred sixty-nine thousand, eight hundred one".

Divisors: 1 11 121 260081 2860891 31469801