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249585061 = 1131731921
BaseRepresentation
bin11101110000001…
…01110110100101
3122101122020100011
432320011312211
51002343210221
640433250221
76120303145
oct1670056645
9571566304
10249585061
1111897aa50
126b703971
133c92888b
142520c925
1516da11e1
hexee05da5

249585061 has 8 divisors (see below), whose sum is σ = 281058048. Its totient is φ = 219576000.

The previous prime is 249585053. The next prime is 249585101. The reversal of 249585061 is 160585942.

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

It is a cyclic number.

It is not a de Polignac number, because 249585061 - 23 = 249585053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249585001) 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, 365620 + ... + 366301.

It is an arithmetic number, because the mean of its divisors is an integer number (35132256).

Almost surely, 2249585061 is an apocalyptic number.

It is an amenable number.

249585061 is a deficient number, since it is larger than the sum of its proper divisors (31472987).

249585061 is a wasteful number, since it uses less digits than its factorization.

249585061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731963.

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 249585061 is about 15798.2613283867. The cubic root of 249585061 is about 629.6118050259.

The spelling of 249585061 in words is "two hundred forty-nine million, five hundred eighty-five thousand, sixty-one".

Divisors: 1 11 31 341 731921 8051131 22689551 249585061