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61693141 = 1134191303
BaseRepresentation
bin1110101101010…
…1110011010101
311022002100002011
43223111303111
5111243140031
610042144221
71346245246
oct353256325
9138070064
1061693141
1131907a74
12187b2071
13ca20823
14829cccd
1556396b1
hex3ad5cd5

61693141 has 8 divisors (see below), whose sum is σ = 62435520. Its totient is φ = 60954432.

The previous prime is 61693139. The next prime is 61693169. The reversal of 61693141 is 14139616.

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 61693141 - 21 = 61693139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61694141) 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, 46696 + ... + 47998.

It is an arithmetic number, because the mean of its divisors is an integer number (7804440).

Almost surely, 261693141 is an apocalyptic number.

It is an amenable number.

61693141 is a deficient number, since it is larger than the sum of its proper divisors (742379).

61693141 is a wasteful number, since it uses less digits than its factorization.

61693141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835.

The product of its digits is 3888, while the sum is 31.

The square root of 61693141 is about 7854.4981380098. The cubic root of 61693141 is about 395.1351158763.

The spelling of 61693141 in words is "sixty-one million, six hundred ninety-three thousand, one hundred forty-one".

Divisors: 1 113 419 1303 47347 147239 545957 61693141