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61330353 = 379832971
BaseRepresentation
bin1110100111110…
…1001110110001
311021101220102120
43221331032301
5111200032403
610030304453
71343204460
oct351751661
9137356376
1061330353
113168a447
1218658129
13c924666
1482069d7
1555b6e53
hex3a7d3b1

61330353 has 16 divisors (see below), whose sum is σ = 93582336. Its totient is φ = 34998480.

The previous prime is 61330343. The next prime is 61330361. The reversal of 61330353 is 35303316.

It is not a de Polignac number, because 61330353 - 28 = 61330097 is a prime.

It is a super-2 number, since 2×613303532 = 7522824398209218, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61330333) 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, 19158 + ... + 22128.

It is an arithmetic number, because the mean of its divisors is an integer number (5848896).

Almost surely, 261330353 is an apocalyptic number.

It is an amenable number.

61330353 is a deficient number, since it is larger than the sum of its proper divisors (32251983).

61330353 is a wasteful number, since it uses less digits than its factorization.

61330353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3964.

The product of its (nonzero) digits is 2430, while the sum is 24.

The square root of 61330353 is about 7831.3698035529. The cubic root of 61330353 is about 394.3590588232.

Adding to 61330353 its reverse (35303316), we get a palindrome (96633669).

The spelling of 61330353 in words is "sixty-one million, three hundred thirty thousand, three hundred fifty-three".

Divisors: 1 3 7 21 983 2949 2971 6881 8913 20643 20797 62391 2920493 8761479 20443451 61330353