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13130022 = 2312717231
BaseRepresentation
bin110010000101…
…100100100110
3220201002000010
4302011210212
511330130042
61145231050
7216413643
oct62054446
926632003
1013130022
117458864
124492486
132949459
141a5adca
15124559c
hexc85926

13130022 has 16 divisors (see below), whose sum is σ = 26468352. Its totient is φ = 4341960.

The previous prime is 13130009. The next prime is 13130027. The reversal of 13130022 is 22003131.

Added to its reverse (22003131) it gives a triangular number (35133153 = T8382).

It is a happy number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13130027) 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, 7854 + ... + 9377.

It is an arithmetic number, because the mean of its divisors is an integer number (1654272).

Almost surely, 213130022 is an apocalyptic number.

13130022 is an abundant number, since it is smaller than the sum of its proper divisors (13338330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13130022 is a wasteful number, since it uses less digits than its factorization.

13130022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17363.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 13130022 is about 3623.5372221077. The cubic root of 13130022 is about 235.9147805879.

Adding to 13130022 its reverse (22003131), we get a palindrome (35133153).

The spelling of 13130022 in words is "thirteen million, one hundred thirty thousand, twenty-two".

Divisors: 1 2 3 6 127 254 381 762 17231 34462 51693 103386 2188337 4376674 6565011 13130022