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61790349 = 341949157
BaseRepresentation
bin1110101110110…
…1100010001101
311022021021102110
43223231202031
5111304242344
610044214233
71350131535
oct353554215
9138237373
1061790349
1131974005
121883a379
13ca55b4a
1482c64c5
1556583b9
hex3aed88d

61790349 has 8 divisors (see below), whose sum is σ = 82585440. Its totient is φ = 41094416.

The previous prime is 61790341. The next prime is 61790357. The reversal of 61790349 is 94309716.

It is an interprime number because it is at equal distance from previous prime (61790341) and next prime (61790357).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61790349 - 23 = 61790341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61790341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23322 + ... + 25835.

It is an arithmetic number, because the mean of its divisors is an integer number (10323180).

Almost surely, 261790349 is an apocalyptic number.

It is an amenable number.

61790349 is a deficient number, since it is larger than the sum of its proper divisors (20795091).

61790349 is a wasteful number, since it uses less digits than its factorization.

61790349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49579.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 61790349 is about 7860.6837488860. The cubic root of 61790349 is about 395.3425410854.

The spelling of 61790349 in words is "sixty-one million, seven hundred ninety thousand, three hundred forty-nine".

Divisors: 1 3 419 1257 49157 147471 20596783 61790349