Search a number
-
+
774040047 = 31123455759
BaseRepresentation
bin101110001000101…
…110100111101111
31222221111022022220
4232020232213233
53041123240142
6204450210423
725116142344
oct5610564757
91887438286
10774040047
11367a1a820
12197283a13
13c4493a81
1474b2c7cb
1547e4a2ec
hex2e22e9ef

774040047 has 8 divisors (see below), whose sum is σ = 1125876480. Its totient is φ = 469115160.

The previous prime is 774040027. The next prime is 774040049. The reversal of 774040047 is 740040477.

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

It is not a de Polignac number, because 774040047 - 26 = 774039983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 23455759 = 774040047 / (7 + 7 + 4 + 0 + 4 + 0 + 0 + 4 + 7).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (774040049) 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, 11727847 + ... + 11727912.

It is an arithmetic number, because the mean of its divisors is an integer number (140734560).

Almost surely, 2774040047 is an apocalyptic number.

774040047 is a deficient number, since it is larger than the sum of its proper divisors (351836433).

774040047 is a wasteful number, since it uses less digits than its factorization.

774040047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23455773.

The product of its (nonzero) digits is 21952, while the sum is 33.

The square root of 774040047 is about 27821.5752070223. The cubic root of 774040047 is about 918.1658665740.

The spelling of 774040047 in words is "seven hundred seventy-four million, forty thousand, forty-seven".

Divisors: 1 3 11 33 23455759 70367277 258013349 774040047