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190030983 = 3103733839
BaseRepresentation
bin10110101001110…
…10010010000111
3111020120120111120
423110322102013
5342121442413
630505005023
74465144122
oct1324722207
9436516446
10190030983
11982a40aa
1253783773
13304a688c
141b3493b9
1511a3a723
hexb53a487

190030983 has 16 divisors (see below), whose sum is σ = 256488960. Its totient is φ = 125136864.

The previous prime is 190030969. The next prime is 190030993. The reversal of 190030983 is 389030091.

190030983 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 190030983 - 28 = 190030727 is a prime.

It is a super-2 number, since 2×1900309832 = 72223548999892578, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190030903) 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, 226078 + ... + 226916.

It is an arithmetic number, because the mean of its divisors is an integer number (16030560).

Almost surely, 2190030983 is an apocalyptic number.

190030983 is a deficient number, since it is larger than the sum of its proper divisors (66457977).

190030983 is a wasteful number, since it uses less digits than its factorization.

190030983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1678.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 190030983 is about 13785.1725778098. The cubic root of 190030983 is about 574.9209549817.

The spelling of 190030983 in words is "one hundred ninety million, thirty thousand, nine hundred eighty-three".

Divisors: 1 3 103 309 733 839 2199 2517 75499 86417 226497 259251 614987 1844961 63343661 190030983