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30401061 = 397104471
BaseRepresentation
bin111001111111…
…0001000100101
32010012112102020
41303332020211
530240313221
63003333353
7516255555
oct163761045
963175366
1030401061
1116184849
12a221259
1363b56c2
144075165
152a07ac6
hex1cfe225

30401061 has 8 divisors (see below), whose sum is σ = 40953024. Its totient is φ = 20058240.

The previous prime is 30401053. The next prime is 30401071. The reversal of 30401061 is 16010403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30401061 - 23 = 30401053 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30401061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30401071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51945 + ... + 52526.

It is an arithmetic number, because the mean of its divisors is an integer number (5119128).

Almost surely, 230401061 is an apocalyptic number.

It is an amenable number.

30401061 is a deficient number, since it is larger than the sum of its proper divisors (10551963).

30401061 is a wasteful number, since it uses less digits than its factorization.

30401061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104571.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 30401061 is about 5513.7157162843. The cubic root of 30401061 is about 312.1017809780.

Adding to 30401061 its reverse (16010403), we get a palindrome (46411464).

The spelling of 30401061 in words is "thirty million, four hundred one thousand, sixty-one".

Divisors: 1 3 97 291 104471 313413 10133687 30401061