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61700089 = 1117329947
BaseRepresentation
bin1110101101011…
…1011111111001
311022002200121111
43223113133321
5111243400324
610042240321
71346304433
oct353273771
9138080544
1061700089
1131912210
12187b60a1
13ca23a39
1482a1653
15563b794
hex3ad77f9

61700089 has 8 divisors (see below), whose sum is σ = 71268768. Its totient is φ = 52791360.

The previous prime is 61700071. The next prime is 61700101. The reversal of 61700089 is 98000716.

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 61700089 - 29 = 61699577 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61700089.

It is not an unprimeable number, because it can be changed into a prime (61700689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164787 + ... + 165160.

It is an arithmetic number, because the mean of its divisors is an integer number (8908596).

Almost surely, 261700089 is an apocalyptic number.

It is an amenable number.

61700089 is a deficient number, since it is larger than the sum of its proper divisors (9568679).

61700089 is a wasteful number, since it uses less digits than its factorization.

61700089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329975.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 61700089 is about 7854.9404198886. The cubic root of 61700089 is about 395.1499489447.

The spelling of 61700089 in words is "sixty-one million, seven hundred thousand, eighty-nine".

Divisors: 1 11 17 187 329947 3629417 5609099 61700089