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13120140430442 = 243877173956411
BaseRepresentation
bin1011111011101100010101…
…0011110100110001101010
31201110021101010220202010102
42332323011103310301222
53204430021422233232
643523150450545402
72522620211406113
oct276730523646152
951407333822112
1013120140430442
1141a9247260331
12157a930598262
137422baca0a06
14335037c8520a
1517b441b2b662
hexbeec54f4c6a

13120140430442 has 16 divisors (see below), whose sum is σ = 20160852325152. Its totient is φ = 6400204236720.

The previous prime is 13120140430429. The next prime is 13120140430459. The reversal of 13120140430442 is 24403404102131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86902784 + ... + 87053627.

It is an arithmetic number, because the mean of its divisors is an integer number (1260053270322).

Almost surely, 213120140430442 is an apocalyptic number.

13120140430442 is a deficient number, since it is larger than the sum of its proper divisors (7040711894710).

13120140430442 is a wasteful number, since it uses less digits than its factorization.

13120140430442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173957333.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 13120140430442 its reverse (24403404102131), we get a palindrome (37523544532573).

The spelling of 13120140430442 in words is "thirteen trillion, one hundred twenty billion, one hundred forty million, four hundred thirty thousand, four hundred forty-two".

Divisors: 1 2 43 86 877 1754 37711 75422 173956411 347912822 7480125673 14960251346 152559772447 305119544894 6560070215221 13120140430442