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61344315 = 3251363207
BaseRepresentation
bin1110101000000…
…0101000111011
311021102121120200
43222000220323
5111201004230
610030453243
71343263254
oct352005073
9137377520
1061344315
113169998a
1218664223
13c92ab16
14820bb2b
1555bb160
hex3a80a3b

61344315 has 12 divisors (see below), whose sum is σ = 106330224. Its totient is φ = 32716944.

The previous prime is 61344301. The next prime is 61344317. The reversal of 61344315 is 51344316.

61344315 is a `hidden beast` number, since 6 + 1 + 344 + 315 = 666.

It is not a de Polignac number, because 61344315 - 212 = 61340219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61344317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 681559 + ... + 681648.

It is an arithmetic number, because the mean of its divisors is an integer number (8860852).

Almost surely, 261344315 is an apocalyptic number.

61344315 is a deficient number, since it is larger than the sum of its proper divisors (44985909).

61344315 is a wasteful number, since it uses less digits than its factorization.

61344315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363218 (or 1363215 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 61344315 is about 7832.2611677599. The cubic root of 61344315 is about 394.3889821436.

Subtracting from 61344315 its reverse (51344316), we obtain a palindrome (9999999).

The spelling of 61344315 in words is "sixty-one million, three hundred forty-four thousand, three hundred fifteen".

Divisors: 1 3 5 9 15 45 1363207 4089621 6816035 12268863 20448105 61344315