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30770896 = 2413147937
BaseRepresentation
bin111010101100…
…0011011010000
32010220022201211
41311120123100
530334132041
63015305504
7522356032
oct165303320
963808654
1030770896
11164076a2
12a37b294
1364b4b40
14412dc52
152a7c481
hex1d586d0

30770896 has 20 divisors (see below), whose sum is σ = 64205092. Its totient is φ = 14201856.

The previous prime is 30770893. The next prime is 30770897. The reversal of 30770896 is 69807703.

It can be written as a sum of positive squares in 2 ways, for example, as 14930496 + 15840400 = 3864^2 + 3980^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30770893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73761 + ... + 74176.

Almost surely, 230770896 is an apocalyptic number.

It is an amenable number.

30770896 is an abundant number, since it is smaller than the sum of its proper divisors (33434196).

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

30770896 is a wasteful number, since it uses less digits than its factorization.

30770896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147958 (or 147952 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 30770896 is about 5547.1520620946. The cubic root of 30770896 is about 313.3622768897.

The spelling of 30770896 in words is "thirty million, seven hundred seventy thousand, eight hundred ninety-six".

Divisors: 1 2 4 8 13 16 26 52 104 208 147937 295874 591748 1183496 1923181 2366992 3846362 7692724 15385448 30770896