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30703477 = 74386211
BaseRepresentation
bin111010100011…
…1111101110101
32010202220020211
41311013331311
530330002402
63014025421
7521655340
oct165077565
963686224
1030703477
1116370a82
12a348271
13649024c
144113457
152a674d7
hex1d47f75

30703477 has 4 divisors (see below), whose sum is σ = 35089696. Its totient is φ = 26317260.

The previous prime is 30703471. The next prime is 30703499. The reversal of 30703477 is 77430703.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30703477 - 27 = 30703349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30703471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2193099 + ... + 2193112.

It is an arithmetic number, because the mean of its divisors is an integer number (8772424).

Almost surely, 230703477 is an apocalyptic number.

It is an amenable number.

30703477 is a deficient number, since it is larger than the sum of its proper divisors (4386219).

30703477 is an equidigital number, since it uses as much as digits as its factorization.

30703477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4386218.

The product of its (nonzero) digits is 12348, while the sum is 31.

The square root of 30703477 is about 5541.0718277243. The cubic root of 30703477 is about 313.1332507391.

The spelling of 30703477 in words is "thirty million, seven hundred three thousand, four hundred seventy-seven".

Divisors: 1 7 4386211 30703477