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13120120031224 = 2316196910125487
BaseRepresentation
bin1011111011101100010000…
…0110000000011111111000
31201110021022201112100122211
42332323010012000133320
53204430001211444344
643523144441424504
72522616543125143
oct276730406003770
951407281470584
1013120120031224
1141a9236798078
12157a92579b134
137422b69aa97b
1433503529505a
1517b43ee4c334
hexbeec41807f8

13120120031224 has 16 divisors (see below), whose sum is σ = 24600379370400. Its totient is φ = 6560018865792.

The previous prime is 13120120031173. The next prime is 13120120031321. The reversal of 13120120031224 is 42213002102131.

13120120031224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 13120120031195 and 13120120031204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3766992 + ... + 6358495.

It is an arithmetic number, because the mean of its divisors is an integer number (1537523710650).

Almost surely, 213120120031224 is an apocalyptic number.

It is an amenable number.

13120120031224 is a deficient number, since it is larger than the sum of its proper divisors (11480259339176).

13120120031224 is a wasteful number, since it uses less digits than its factorization.

13120120031224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10287462 (or 10287458 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 13120120031224 its reverse (42213002102131), we get a palindrome (55333122133355).

The spelling of 13120120031224 in words is "thirteen trillion, one hundred twenty billion, one hundred twenty million, thirty-one thousand, two hundred twenty-four".

Divisors: 1 2 4 8 161969 323938 647876 1295752 10125487 20250974 40501948 81003896 1640015003903 3280030007806 6560060015612 13120120031224