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61712041 = 3137173311
BaseRepresentation
bin1110101101101…
…0011010101001
311022010022000011
43223122122221
5111244241131
610042411521
71346354326
oct353323251
9138108004
1061712041
1131920196
1218800ba1
13ca29301
1482a5b4d
1556400b1
hex3ada6a9

61712041 has 16 divisors (see below), whose sum is σ = 66014208. Its totient is φ = 57585600.

The previous prime is 61712017. The next prime is 61712047. The reversal of 61712041 is 14021716.

61712041 = 4812 + 4822 + ... + 6662.

It is not a de Polignac number, because 61712041 - 221 = 59614889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61712047) 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, 198276 + ... + 198586.

It is an arithmetic number, because the mean of its divisors is an integer number (4125888).

Almost surely, 261712041 is an apocalyptic number.

It is an amenable number.

61712041 is a deficient number, since it is larger than the sum of its proper divisors (4302167).

61712041 is a wasteful number, since it uses less digits than its factorization.

61712041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 61712041 is about 7855.7011781253. The cubic root of 61712041 is about 395.1754622913.

Adding to 61712041 its reverse (14021716), we get a palindrome (75733757).

The spelling of 61712041 in words is "sixty-one million, seven hundred twelve thousand, forty-one".

Divisors: 1 31 37 173 311 1147 5363 6401 9641 11507 53803 198431 356717 1667893 1990711 61712041