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3055431 = 31018477
BaseRepresentation
bin1011101001111101000111
312202020021010
423221331013
51240233211
6145253303
734653651
oct13517507
95666233
103055431
1117a7655
121034233
1382c962
145976d1
154054a6
hex2e9f47

3055431 has 4 divisors (see below), whose sum is σ = 4073912. Its totient is φ = 2036952.

The previous prime is 3055417. The next prime is 3055439. The reversal of 3055431 is 1345503.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3055431 - 25 = 3055399 is a prime.

It is a super-2 number, since 2×30554312 = 18671317191522, which contains 22 as substring.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3055398 and 3055407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3055439) 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, 509236 + ... + 509241.

It is an arithmetic number, because the mean of its divisors is an integer number (1018478).

Almost surely, 23055431 is an apocalyptic number.

3055431 is a deficient number, since it is larger than the sum of its proper divisors (1018481).

3055431 is a wasteful number, since it uses less digits than its factorization.

3055431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018480.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 3055431 is about 1747.9791188684. The cubic root of 3055431 is about 145.1078230918.

It can be divided in two parts, 3055 and 431, that added together give a triangular number (3486 = T83).

The spelling of 3055431 in words is "three million, fifty-five thousand, four hundred thirty-one".

Divisors: 1 3 1018477 3055431