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61414321 = 523117427
BaseRepresentation
bin1110101001000…
…1101110110001
311021120011121111
43222101232301
5111210224241
610032153321
71344004333
oct352215661
9137504544
1061414321
1131737541
1218698841
13c953947
148229453
1555d1c81
hex3a91bb1

61414321 has 4 divisors (see below), whose sum is σ = 61532272. Its totient is φ = 61296372.

The previous prime is 61414313. The next prime is 61414343. The reversal of 61414321 is 12341416.

61414321 = T199 + T200 + ... + T721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61414321 - 23 = 61414313 is a prime.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61414292 and 61414301.

It is not an unprimeable number, because it can be changed into a prime (61414391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58191 + ... + 59236.

It is an arithmetic number, because the mean of its divisors is an integer number (15383068).

Almost surely, 261414321 is an apocalyptic number.

It is an amenable number.

61414321 is a deficient number, since it is larger than the sum of its proper divisors (117951).

61414321 is a wasteful number, since it uses less digits than its factorization.

61414321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117950.

The product of its digits is 576, while the sum is 22.

The square root of 61414321 is about 7836.7289732388. The cubic root of 61414321 is about 394.5389503956.

Adding to 61414321 its reverse (12341416), we get a palindrome (73755737).

The spelling of 61414321 in words is "sixty-one million, four hundred fourteen thousand, three hundred twenty-one".

Divisors: 1 523 117427 61414321