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30425477 = 31981467
BaseRepresentation
bin111010000010…
…0000110000101
32010020202220112
41310010012011
530242103402
63004042405
7516420005
oct164040605
963222815
1030425477
11161a1125
12a233405
1363c3854
144080005
152a0ee52
hex1d04185

30425477 has 4 divisors (see below), whose sum is σ = 31406976. Its totient is φ = 29443980.

The previous prime is 30425453. The next prime is 30425509. The reversal of 30425477 is 77452403.

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 30425477 - 28 = 30425221 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 (30425077) 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, 490703 + ... + 490764.

It is an arithmetic number, because the mean of its divisors is an integer number (7851744).

Almost surely, 230425477 is an apocalyptic number.

It is an amenable number.

30425477 is a deficient number, since it is larger than the sum of its proper divisors (981499).

30425477 is an equidigital number, since it uses as much as digits as its factorization.

30425477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981498.

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 30425477 is about 5515.9293867851. The cubic root of 30425477 is about 312.1853113738.

The spelling of 30425477 in words is "thirty million, four hundred twenty-five thousand, four hundred seventy-seven".

Divisors: 1 31 981467 30425477