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31050044146 = 21113782712457
BaseRepresentation
bin11100111010101110…
…100001001011110010
32222010221010200011001
4130322232201023302
51002042302403041
622133022112214
72146310010022
oct347256411362
988127120131
1031050044146
1112193a38810
12602671b66a
132c0aaa47b4
141707aa1a82
15c1ade3131
hex73aba12f2

31050044146 has 32 divisors (see below), whose sum is σ = 51246032832. Its totient is φ = 13992572160.

The previous prime is 31050044143. The next prime is 31050044149. The reversal of 31050044146 is 64144005013.

It is an interprime number because it is at equal distance from previous prime (31050044143) and next prime (31050044149).

It is not an unprimeable number, because it can be changed into a prime (31050044143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2486350 + ... + 2498806.

It is an arithmetic number, because the mean of its divisors is an integer number (1601438526).

Almost surely, 231050044146 is an apocalyptic number.

31050044146 is a deficient number, since it is larger than the sum of its proper divisors (20195988686).

31050044146 is a wasteful number, since it uses less digits than its factorization.

31050044146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13434.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 31050044146 its reverse (64144005013), we get a palindrome (95194049159).

The spelling of 31050044146 in words is "thirty-one billion, fifty million, forty-four thousand, one hundred forty-six".

Divisors: 1 2 11 22 137 274 827 1507 1654 3014 9097 12457 18194 24914 113299 137027 226598 274054 1246289 1706609 2492578 3413218 10301939 18772699 20603878 37545398 113321329 226642658 1411365643 2822731286 15525022073 31050044146