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131006030 = 2539732999
BaseRepresentation
bin1111100111011…
…11111001001110
3100010111210111012
413303233321032
5232014143110
620555525222
73150350531
oct763577116
9303453435
10131006030
1167a49851
1237a59812
13211ab67c
1413582a18
15b77b905
hex7cefe4e

131006030 has 16 divisors (see below), whose sum is σ = 236412000. Its totient is φ = 52268832.

The previous prime is 131006017. The next prime is 131006047. The reversal of 131006030 is 30600131.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 131005996 and 131006014.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 12530 + ... + 20469.

It is an arithmetic number, because the mean of its divisors is an integer number (14775750).

Almost surely, 2131006030 is an apocalyptic number.

131006030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131006030 is a deficient number, since it is larger than the sum of its proper divisors (105405970).

131006030 is a wasteful number, since it uses less digits than its factorization.

131006030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33403.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 131006030 is about 11445.7865610014. The cubic root of 131006030 is about 507.8831002843.

Adding to 131006030 its reverse (30600131), we get a palindrome (161606161).

The spelling of 131006030 in words is "one hundred thirty-one million, six thousand, thirty".

Divisors: 1 2 5 10 397 794 1985 3970 32999 65998 164995 329990 13100603 26201206 65503015 131006030