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61300315 = 512260063
BaseRepresentation
bin1110100111010…
…1111001011011
311021100101020001
43221311321123
5111143102230
610025513431
71343021056
oct351657133
9137311201
1061300315
113166991a
1218642877
13c913a9b
1481d9a9d
1555ad0ca
hex3a75e5b

61300315 has 4 divisors (see below), whose sum is σ = 73560384. Its totient is φ = 49040248.

The previous prime is 61300273. The next prime is 61300321. The reversal of 61300315 is 51300316.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-61300315 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61300292 and 61300301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6130027 + ... + 6130036.

It is an arithmetic number, because the mean of its divisors is an integer number (18390096).

Almost surely, 261300315 is an apocalyptic number.

61300315 is a deficient number, since it is larger than the sum of its proper divisors (12260069).

61300315 is a wasteful number, since it uses less digits than its factorization.

61300315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12260068.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 61300315 is about 7829.4517688022. The cubic root of 61300315 is about 394.2946660646.

Subtracting from 61300315 its reverse (51300316), we obtain a palindrome (9999999).

The spelling of 61300315 in words is "sixty-one million, three hundred thousand, three hundred fifteen".

Divisors: 1 5 12260063 61300315