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770048 = 21447
BaseRepresentation
bin10111100000000000000
31110010022022
42330000000
5144120143
624301012
76355016
oct2740000
91403268
10770048
11486604
12311768
1320c666
141608b6
15103268
hexbc000

770048 has 30 divisors (see below), whose sum is σ = 1572816. Its totient is φ = 376832.

The previous prime is 770047. The next prime is 770053. The reversal of 770048 is 840077.

It is a junction number, because it is equal to n+sod(n) for n = 769999 and 770026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (770041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16361 + ... + 16407.

2770048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 770048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (786408).

770048 is an abundant number, since it is smaller than the sum of its proper divisors (802768).

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

770048 is an frugal number, since it uses more digits than its factorization.

770048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75 (or 49 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 770048 is about 877.5237888513. The cubic root of 770048 is about 91.6584690557.

The spelling of 770048 in words is "seven hundred seventy thousand, forty-eight".

Divisors: 1 2 4 8 16 32 47 64 94 128 188 256 376 512 752 1024 1504 2048 3008 4096 6016 8192 12032 16384 24064 48128 96256 192512 385024 770048