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13130144120 = 235378871719
BaseRepresentation
bin11000011101001111…
…00001100101111000
31020220001200102122002
430032213201211320
5203342304102440
610010520320132
7643243245362
oct141647414570
936801612562
1013130144120
115628695685
122665313048
13131333ac62
148c7b65d32
1551caad115
hex30e9e1978

13130144120 has 32 divisors (see below), whose sum is σ = 30341282400. Its totient is φ = 5110109568.

The previous prime is 13130144119. The next prime is 13130144141. The reversal of 13130144120 is 2144103131.

13130144120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×131301441202 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 13130144092 and 13130144101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4434380 + ... + 4437339.

It is an arithmetic number, because the mean of its divisors is an integer number (948165075).

Almost surely, 213130144120 is an apocalyptic number.

13130144120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13130144120 is an abundant number, since it is smaller than the sum of its proper divisors (17211138280).

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

13130144120 is a wasteful number, since it uses less digits than its factorization.

13130144120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8871767 (or 8871763 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 13130144120 its reverse (2144103131), we get a palindrome (15274247251).

The spelling of 13130144120 in words is "thirteen billion, one hundred thirty million, one hundred forty-four thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 37 40 74 148 185 296 370 740 1480 8871719 17743438 35486876 44358595 70973752 88717190 177434380 328253603 354868760 656507206 1313014412 1641268015 2626028824 3282536030 6565072060 13130144120