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190486401 = 3719147491
BaseRepresentation
bin10110101101010…
…01011110000001
3111021102201012220
423112221132001
5342231031101
630522441253
74502051640
oct1326513601
9437381186
10190486401
1198585286
1253963229
1330605c61
141b427357
1511aca636
hexb5a9781

190486401 has 16 divisors (see below), whose sum is σ = 291790848. Its totient is φ = 108277200.

The previous prime is 190486363. The next prime is 190486403. The reversal of 190486401 is 104684091.

190486401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 190486401 - 26 = 190486337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (190486403) 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, 19735 + ... + 27756.

It is an arithmetic number, because the mean of its divisors is an integer number (18236928).

Almost surely, 2190486401 is an apocalyptic number.

It is an amenable number.

190486401 is a deficient number, since it is larger than the sum of its proper divisors (101304447).

190486401 is a wasteful number, since it uses less digits than its factorization.

190486401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47692.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 190486401 is about 13801.6810932582. The cubic root of 190486401 is about 575.3798634245.

It can be divided in two parts, 190 and 486401, that added together give a triangular number (486591 = T986).

The spelling of 190486401 in words is "one hundred ninety million, four hundred eighty-six thousand, four hundred one".

Divisors: 1 3 7 21 191 573 1337 4011 47491 142473 332437 997311 9070781 27212343 63495467 190486401