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34285531 = 74897933
BaseRepresentation
bin1000001011001…
…0011111011011
32101111212220111
42002302133123
532234114111
63222505151
7564264550
oct202623733
971455814
1034285531
1118398255
12b5951b7
1371457c7
1447a6a27
153023a21
hex20b27db

34285531 has 4 divisors (see below), whose sum is σ = 39183472. Its totient is φ = 29387592.

The previous prime is 34285529. The next prime is 34285547. The reversal of 34285531 is 13558243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13558243 = 37366439.

It is a cyclic number.

It is not a de Polignac number, because 34285531 - 21 = 34285529 is a prime.

It is a super-2 number, since 2×342855312 = 2350995271903922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34285493 and 34285502.

It is not an unprimeable number, because it can be changed into a prime (34285591) 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, 2448960 + ... + 2448973.

It is an arithmetic number, because the mean of its divisors is an integer number (9795868).

Almost surely, 234285531 is an apocalyptic number.

34285531 is a deficient number, since it is larger than the sum of its proper divisors (4897941).

34285531 is an equidigital number, since it uses as much as digits as its factorization.

34285531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4897940.

The product of its digits is 14400, while the sum is 31.

The square root of 34285531 is about 5855.3847866729. The cubic root of 34285531 is about 324.8655254315.

The spelling of 34285531 in words is "thirty-four million, two hundred eighty-five thousand, five hundred thirty-one".

Divisors: 1 7 4897933 34285531