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61404414 = 2310234069
BaseRepresentation
bin1110101000111…
…1010011111110
311021112200000120
43222033103332
5111204420124
610032035410
71343633421
oct352172376
9137480016
1061404414
1131730055
1218692b66
13c94c296
1482259b8
1555cdd79
hex3a8f4fe

61404414 has 8 divisors (see below), whose sum is σ = 122808840. Its totient is φ = 20468136.

The previous prime is 61404403. The next prime is 61404439. The reversal of 61404414 is 41440416.

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

61404414 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5117029 + ... + 5117040.

It is an arithmetic number, because the mean of its divisors is an integer number (15351105).

Almost surely, 261404414 is an apocalyptic number.

61404414 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61404414 is a wasteful number, since it uses less digits than its factorization.

61404414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10234074.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 61404414 is about 7836.0968600445. The cubic root of 61404414 is about 394.5177343474.

The spelling of 61404414 in words is "sixty-one million, four hundred four thousand, four hundred fourteen".

Divisors: 1 2 3 6 10234069 20468138 30702207 61404414