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190043934 = 23137231197
BaseRepresentation
bin10110101001111…
…01011100011110
3111020121020021020
423110331130132
5342122401214
630505145010
74465226643
oct1324753436
9436536236
10190043934
1198302903
125378b166
13304ac742
141b34ddca
1511a3e4a9
hexb53d71e

190043934 has 16 divisors (see below), whose sum is σ = 382863888. Its totient is φ = 62885312.

The previous prime is 190043933. The next prime is 190043941. The reversal of 190043934 is 439340091.

It is a super-2 number, since 2×1900439342 = 72233393700392712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 190043895 and 190043904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190043933) 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, 114777 + ... + 116420.

It is an arithmetic number, because the mean of its divisors is an integer number (23928993).

Almost surely, 2190043934 is an apocalyptic number.

190043934 is an abundant number, since it is smaller than the sum of its proper divisors (192819954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

190043934 is a wasteful number, since it uses less digits than its factorization.

190043934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231339.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 190043934 is about 13785.6423136537. The cubic root of 190043934 is about 574.9340153645.

The spelling of 190043934 in words is "one hundred ninety million, forty-three thousand, nine hundred thirty-four".

Divisors: 1 2 3 6 137 274 411 822 231197 462394 693591 1387182 31673989 63347978 95021967 190043934