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13031030 = 253741859
BaseRepresentation
bin110001101101…
…011001110110
3220112001012202
4301231121312
511313443110
61143144502
7215522225
oct61553166
926461182
1013031030
1173a0451
124445132
13291338c
141a32cbc
1512260a5
hexc6d676

13031030 has 32 divisors (see below), whose sum is σ = 24706080. Its totient is φ = 4942080.

The previous prime is 13031009. The next prime is 13031033. The reversal of 13031030 is 3013031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13031033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14741 + ... + 15599.

It is an arithmetic number, because the mean of its divisors is an integer number (772065).

Almost surely, 213031030 is an apocalyptic number.

13031030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13031030 is a deficient number, since it is larger than the sum of its proper divisors (11675050).

13031030 is a wasteful number, since it uses less digits than its factorization.

13031030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944.

The product of its (nonzero) digits is 27, while the sum is 11.

The square root of 13031030 is about 3609.8517975119. The cubic root of 13031030 is about 235.3204019534.

Adding to 13031030 its reverse (3013031), we get a palindrome (16044061).

The spelling of 13031030 in words is "thirteen million, thirty-one thousand, thirty".

Divisors: 1 2 5 10 37 41 74 82 185 205 370 410 859 1517 1718 3034 4295 7585 8590 15170 31783 35219 63566 70438 158915 176095 317830 352190 1303103 2606206 6515515 13031030