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61296705 = 3253174297
BaseRepresentation
bin1110100111010…
…1000001000001
311021100012021100
43221311001001
5111142443310
610025445013
71343004411
oct351650101
9137305240
1061296705
1131667138
1218640769
13c912252
1481d8641
1555abec0
hex3a75041

61296705 has 24 divisors (see below), whose sum is σ = 106607592. Its totient is φ = 32580864.

The previous prime is 61296689. The next prime is 61296727. The reversal of 61296705 is 50769216.

It can be written as a sum of positive squares in 4 ways, for example, as 269361 + 61027344 = 519^2 + 7812^2 .

It is not a de Polignac number, because 61296705 - 24 = 61296689 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 61296705.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12117 + ... + 16413.

It is an arithmetic number, because the mean of its divisors is an integer number (4441983).

Almost surely, 261296705 is an apocalyptic number.

It is an amenable number.

61296705 is a deficient number, since it is larger than the sum of its proper divisors (45310887).

61296705 is a wasteful number, since it uses less digits than its factorization.

61296705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4625 (or 4622 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 61296705 is about 7829.2212256392. The cubic root of 61296705 is about 394.2869258559.

It can be divided in two parts, 61296 and 705, that added together give a square (62001 = 2492).

The spelling of 61296705 in words is "sixty-one million, two hundred ninety-six thousand, seven hundred five".

Divisors: 1 3 5 9 15 45 317 951 1585 2853 4297 4755 12891 14265 21485 38673 64455 193365 1362149 4086447 6810745 12259341 20432235 61296705