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13247770423 = 31613697141
BaseRepresentation
bin11000101011010000…
…01110111100110111
31021012021000110120211
430111220032330313
5204112412123143
610030321410251
7646202122246
oct142550167467
937167013524
1013247770423
115689025aa8
122698799987
131331813614
148d962495d
1552809549d
hex315a0ef37

13247770423 has 8 divisors (see below), whose sum is σ = 13697446016. Its totient is φ = 12799490400.

The previous prime is 13247770409. The next prime is 13247770427. The reversal of 13247770423 is 32407774231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13247770423 - 221 = 13245673271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13247770427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329568 + ... + 367573.

It is an arithmetic number, because the mean of its divisors is an integer number (1712180752).

Almost surely, 213247770423 is an apocalyptic number.

13247770423 is a deficient number, since it is larger than the sum of its proper divisors (449675593).

13247770423 is an equidigital number, since it uses as much as digits as its factorization.

13247770423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697785.

The product of its (nonzero) digits is 197568, while the sum is 40.

The spelling of 13247770423 in words is "thirteen billion, two hundred forty-seven million, seven hundred seventy thousand, four hundred twenty-three".

Divisors: 1 31 613 19003 697141 21611371 427347433 13247770423