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61468449 = 3728310343
BaseRepresentation
bin1110101001111…
…0111100100001
311021122220212020
43222132330201
5111213442244
610033252053
71344321210
oct352367441
9137586766
1061468449
1131774179
1218704029
13c972483
148241077
1555e2d19
hex3a9ef21

61468449 has 16 divisors (see below), whose sum is σ = 94006272. Its totient is φ = 34997328.

The previous prime is 61468391. The next prime is 61468453. The reversal of 61468449 is 94486416.

It is not a de Polignac number, because 61468449 - 211 = 61466401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61468449.

It is not an unprimeable number, because it can be changed into a prime (61468049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 772 + ... + 11114.

It is an arithmetic number, because the mean of its divisors is an integer number (5875392).

Almost surely, 261468449 is an apocalyptic number.

It is an amenable number.

61468449 is a deficient number, since it is larger than the sum of its proper divisors (32537823).

61468449 is a wasteful number, since it uses less digits than its factorization.

61468449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10636.

The product of its digits is 165888, while the sum is 42.

The square root of 61468449 is about 7840.1816943232. The cubic root of 61468449 is about 394.6548263729.

The spelling of 61468449 in words is "sixty-one million, four hundred sixty-eight thousand, four hundred forty-nine".

Divisors: 1 3 7 21 283 849 1981 5943 10343 31029 72401 217203 2927069 8781207 20489483 61468449