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13370144478 = 232228357413
BaseRepresentation
bin11000111001110110…
…00011011011011110
31021111210021201020020
430130323003123132
5204340224110403
610050412333010
7652216232025
oct143473033336
937453251206
1013370144478
115741109489
122711774166
131350c8bcc2
1490b99b8bc
15533bb9453
hex31cec36de

13370144478 has 8 divisors (see below), whose sum is σ = 26740288968. Its totient is φ = 4456714824.

The previous prime is 13370144441. The next prime is 13370144537. The reversal of 13370144478 is 87444107331.

It is a happy number.

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

13370144478 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 1114178701 + ... + 1114178712.

It is an arithmetic number, because the mean of its divisors is an integer number (3342536121).

Almost surely, 213370144478 is an apocalyptic number.

13370144478 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13370144478 is a wasteful number, since it uses less digits than its factorization.

13370144478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2228357418.

The product of its (nonzero) digits is 225792, while the sum is 42.

The spelling of 13370144478 in words is "thirteen billion, three hundred seventy million, one hundred forty-four thousand, four hundred seventy-eight".

Divisors: 1 2 3 6 2228357413 4456714826 6685072239 13370144478