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190507071 = 3431476799
BaseRepresentation
bin10110101101011…
…10100000111111
3111021110202120110
423112232200333
5342232211241
630523121103
74502166126
oct1326564077
9437422513
10190507071
1198599867
1253973193
13306124a1
141b430abd
1511ad1816
hexb5ae83f

190507071 has 8 divisors (see below), whose sum is σ = 259916800. Its totient is φ = 124051032.

The previous prime is 190507067. The next prime is 190507099. The reversal of 190507071 is 170705091.

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

It is not a de Polignac number, because 190507071 - 22 = 190507067 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 (190507001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 738271 + ... + 738528.

It is an arithmetic number, because the mean of its divisors is an integer number (32489600).

Almost surely, 2190507071 is an apocalyptic number.

190507071 is a deficient number, since it is larger than the sum of its proper divisors (69409729).

190507071 is a wasteful number, since it uses less digits than its factorization.

190507071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1476845.

The product of its (nonzero) digits is 2205, while the sum is 30.

The square root of 190507071 is about 13802.4298947685. The cubic root of 190507071 is about 575.4006744843.

The spelling of 190507071 in words is "one hundred ninety million, five hundred seven thousand, seventy-one".

Divisors: 1 3 43 129 1476799 4430397 63502357 190507071