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34101421 = 42181001
BaseRepresentation
bin1000001000010…
…1100010101101
32101011112100121
42002011202231
532212221141
63214524541
7562600024
oct202054255
971145317
1034101421
11182819a2
12b506751
1370aca73
1447598bb
152ed91d1
hex20858ad

34101421 has 4 divisors (see below), whose sum is σ = 34182844. Its totient is φ = 34020000.

The previous prime is 34101407. The next prime is 34101427. The reversal of 34101421 is 12410143.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12152196 + 21949225 = 3486^2 + 4685^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-34101421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34101395 and 34101404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34101427) 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, 40080 + ... + 40921.

It is an arithmetic number, because the mean of its divisors is an integer number (8545711).

Almost surely, 234101421 is an apocalyptic number.

It is an amenable number.

34101421 is a deficient number, since it is larger than the sum of its proper divisors (81423).

34101421 is an equidigital number, since it uses as much as digits as its factorization.

34101421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81422.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 34101421 is about 5839.6421979433. The cubic root of 34101421 is about 324.2829825878.

Adding to 34101421 its reverse (12410143), we get a palindrome (46511564).

It can be divided in two parts, 3410142 and 1, that added together give a palindrome (3410143).

The spelling of 34101421 in words is "thirty-four million, one hundred one thousand, four hundred twenty-one".

Divisors: 1 421 81001 34101421