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190043944 = 2355742649
BaseRepresentation
bin10110101001111…
…01011100101000
3111020121020021121
423110331130220
5342122401234
630505145024
74465226656
oct1324753450
9436536247
10190043944
1198302912
125378b174
13304ac74c
141b34ddd6
1511a3e4b4
hexb53d728

190043944 has 16 divisors (see below), whose sum is σ = 356980500. Its totient is φ = 94849152.

The previous prime is 190043941. The next prime is 190043993. The reversal of 190043944 is 449340091.

It can be written as a sum of positive squares in 2 ways, for example, as 183602500 + 6441444 = 13550^2 + 2538^2 .

It is a super-2 number, since 2×1900439442 = 72233401302150272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (190043941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16869 + ... + 25780.

Almost surely, 2190043944 is an apocalyptic number.

It is an amenable number.

190043944 is a deficient number, since it is larger than the sum of its proper divisors (166936556).

190043944 is a wasteful number, since it uses less digits than its factorization.

190043944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43212 (or 43208 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 190043944 is about 13785.6426763499. The cubic root of 190043944 is about 574.9340254488.

The spelling of 190043944 in words is "one hundred ninety million, forty-three thousand, nine hundred forty-four".

Divisors: 1 2 4 8 557 1114 2228 4456 42649 85298 170596 341192 23755493 47510986 95021972 190043944