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61695369 = 326855041
BaseRepresentation
bin1110101101011…
…0010110001001
311022002110010200
43223112112021
5111243222434
610042202413
71346254611
oct353262611
9138073120
1061695369
113190970a
12187b3409
13ca21848
14829da41
15563a199
hex3ad6589

61695369 has 6 divisors (see below), whose sum is σ = 89115546. Its totient is φ = 41130240.

The previous prime is 61695353. The next prime is 61695377. The reversal of 61695369 is 96359616.

It can be written as a sum of positive squares in only one way, i.e., 44156025 + 17539344 = 6645^2 + 4188^2 .

It is not a de Polignac number, because 61695369 - 24 = 61695353 is a prime.

It is a super-2 number, since 2×616953692 = 7612637112092322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61615369) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3427512 + ... + 3427529.

It is an arithmetic number, because the mean of its divisors is an integer number (14852591).

Almost surely, 261695369 is an apocalyptic number.

It is an amenable number.

61695369 is a deficient number, since it is larger than the sum of its proper divisors (27420177).

61695369 is a wasteful number, since it uses less digits than its factorization.

61695369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6855047 (or 6855044 counting only the distinct ones).

The product of its digits is 262440, while the sum is 45.

The square root of 61695369 is about 7854.6399662874. The cubic root of 61695369 is about 395.1398724853.

The spelling of 61695369 in words is "sixty-one million, six hundred ninety-five thousand, three hundred sixty-nine".

Divisors: 1 3 9 6855041 20565123 61695369