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190484091 = 32723472797
BaseRepresentation
bin10110101101010…
…00111001111011
3111021102121001100
423112220321323
5342230442331
630522422443
74502042130
oct1326507173
9437377040
10190484091
1198583576
1253961a23
1330604ba5
141b426587
1511ac9ae6
hexb5a8e7b

190484091 has 48 divisors (see below), whose sum is σ = 335222784. Its totient is φ = 101863872.

The previous prime is 190484059. The next prime is 190484111.

190484091 is a `hidden beast` number, since 1 + 90 + 484 + 0 + 91 = 666.

190484091 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 190484091 - 25 = 190484059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (190486091) 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 47 ways as a sum of consecutive naturals, for example, 66705 + ... + 69501.

It is an arithmetic number, because the mean of its divisors is an integer number (6983808).

Almost surely, 2190484091 is an apocalyptic number.

190484091 is a deficient number, since it is larger than the sum of its proper divisors (144738693).

190484091 is a wasteful number, since it uses less digits than its factorization.

190484091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2880 (or 2877 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 190484091 is about 13801.5974075467. The cubic root of 190484091 is about 575.3775375667.

The spelling of 190484091 in words is "one hundred ninety million, four hundred eighty-four thousand, ninety-one".

Divisors: 1 3 7 9 21 23 47 63 69 141 161 207 329 423 483 987 1081 1449 2797 2961 3243 7567 8391 9729 19579 22701 25173 58737 64331 68103 131459 176211 192993 394377 450317 578979 920213 1183131 1350951 2760639 3023557 4052853 8281917 9070671 21164899 27212013 63494697 190484091