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61284406 = 297315899
BaseRepresentation
bin1110100111001…
…0000000110110
311021022120101211
43221302000312
5111142100111
610025312034
71342623511
oct351620066
9137276354
1061284406
1131658977
121863561a
13c909781
1481d3d78
1555a8521
hex3a72036

61284406 has 8 divisors (see below), whose sum is σ = 92874600. Its totient is φ = 30326208.

The previous prime is 61284401. The next prime is 61284413. The reversal of 61284406 is 60448216.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61284401) 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, 157756 + ... + 158143.

It is an arithmetic number, because the mean of its divisors is an integer number (11609325).

Almost surely, 261284406 is an apocalyptic number.

61284406 is a deficient number, since it is larger than the sum of its proper divisors (31590194).

61284406 is a wasteful number, since it uses less digits than its factorization.

61284406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315998.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 61284406 is about 7828.4357313578. The cubic root of 61284406 is about 394.2605532623.

The spelling of 61284406 in words is "sixty-one million, two hundred eighty-four thousand, four hundred six".

Divisors: 1 2 97 194 315899 631798 30642203 61284406