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3778454057 = 71928409429
BaseRepresentation
bin1110000100110110…
…1010001000101001
3100202022211100112212
43201031222020221
530214241012212
61422533214505
7162430221020
oct34115521051
910668740485
103778454057
111669925504
12895491435
13482a62441
1427bb638b7
15171ab1e22
hexe136a229

3778454057 has 8 divisors (see below), whose sum is σ = 4545508800. Its totient is φ = 3068218224.

The previous prime is 3778454047. The next prime is 3778454059. The reversal of 3778454057 is 7504548773.

It is a happy number.

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 3778454057 - 24 = 3778454041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3778453996 and 3778454014.

It is not an unprimeable number, because it can be changed into a prime (3778454059) 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, 14204582 + ... + 14204847.

It is an arithmetic number, because the mean of its divisors is an integer number (568188600).

Almost surely, 23778454057 is an apocalyptic number.

It is an amenable number.

3778454057 is a deficient number, since it is larger than the sum of its proper divisors (767054743).

3778454057 is a wasteful number, since it uses less digits than its factorization.

3778454057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28409455.

The product of its (nonzero) digits is 3292800, while the sum is 50.

The square root of 3778454057 is about 61469.1309276453. The cubic root of 3778454057 is about 1557.5358391667.

The spelling of 3778454057 in words is "three billion, seven hundred seventy-eight million, four hundred fifty-four thousand, fifty-seven".

Divisors: 1 7 19 133 28409429 198866003 539779151 3778454057