Search a number
-
+
38402689351 = 1337457174703
BaseRepresentation
bin100011110000111110…
…101000100101000111
310200010100102202012211
4203300332220211013
51112122042024401
625350354524251
72526440321305
oct436076504507
9120110382184
1038402689351
11153173539a4
127538b96687
13381017b930
141c043b7275
15eeb669951
hex8f0fa8947

38402689351 has 16 divisors (see below), whose sum is σ = 42567677824. Its totient is φ = 34414896384.

The previous prime is 38402689327. The next prime is 38402689433. The reversal of 38402689351 is 15398620483.

38402689351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 38402689351 - 29 = 38402688839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38402689295 and 38402689304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38402689951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132466 + ... + 307168.

It is an arithmetic number, because the mean of its divisors is an integer number (2660479864).

Almost surely, 238402689351 is an apocalyptic number.

38402689351 is a deficient number, since it is larger than the sum of its proper divisors (4164988473).

38402689351 is a wasteful number, since it uses less digits than its factorization.

38402689351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175210.

The product of its (nonzero) digits is 1244160, while the sum is 49.

The spelling of 38402689351 in words is "thirty-eight billion, four hundred two million, six hundred eighty-nine thousand, three hundred fifty-one".

Divisors: 1 13 37 457 481 5941 16909 174703 219817 2271139 6464011 79839271 84032143 1037910523 2954053027 38402689351