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38479670406 = 233712586489
BaseRepresentation
bin100011110101100100…
…010010110010000110
310200022201021210101000
4203311210102302012
51112301243423111
625402144514130
72531363542002
oct436544226206
9120281253330
1038479670406
1115356852a01
12755a91b946
1338230c2b58
141c106d5702
1510032c3c56
hex8f5912c86

38479670406 has 16 divisors (see below), whose sum is σ = 85510378800. Its totient is φ = 12826556784.

The previous prime is 38479670387. The next prime is 38479670407. The reversal of 38479670406 is 60407697483.

It is a happy number.

38479670406 is a `hidden beast` number, since 3 + 84 + 7 + 96 + 70 + 406 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 712586489 = 38479670406 / (3 + 8 + 4 + 7 + 9 + 6 + 7 + 0 + 4 + 0 + 6).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38479670407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356293191 + ... + 356293298.

It is an arithmetic number, because the mean of its divisors is an integer number (5344398675).

Almost surely, 238479670406 is an apocalyptic number.

38479670406 is an abundant number, since it is smaller than the sum of its proper divisors (47030708394).

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

38479670406 is a wasteful number, since it uses less digits than its factorization.

38479670406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712586500 (or 712586494 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 54.

The spelling of 38479670406 in words is "thirty-eight billion, four hundred seventy-nine million, six hundred seventy thousand, four hundred six".

Divisors: 1 2 3 6 9 18 27 54 712586489 1425172978 2137759467 4275518934 6413278401 12826556802 19239835203 38479670406