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190043430 = 2356334781
BaseRepresentation
bin10110101001111…
…01010100100110
3111020121012120120
423110331110212
5342122342210
630505142410
74465225323
oct1324752446
9436535516
10190043430
1198302495
125378aa06
13304ac445
141b34db4a
1511a3e270
hexb53d526

190043430 has 16 divisors (see below), whose sum is σ = 456104304. Its totient is φ = 50678240.

The previous prime is 190043429. The next prime is 190043431. The reversal of 190043430 is 34340091.

It is an interprime number because it is at equal distance from previous prime (190043429) and next prime (190043431).

It is a super-2 number, since 2×1900434302 = 72233010572329800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 190043430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190043431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3167361 + ... + 3167420.

It is an arithmetic number, because the mean of its divisors is an integer number (28506519).

Almost surely, 2190043430 is an apocalyptic number.

190043430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190043430 is an abundant number, since it is smaller than the sum of its proper divisors (266060874).

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

190043430 is a wasteful number, since it uses less digits than its factorization.

190043430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6334791.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 190043430 is about 13785.6240337534. The cubic root of 190043430 is about 574.9335071189.

The spelling of 190043430 in words is "one hundred ninety million, forty-three thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 6334781 12669562 19004343 31673905 38008686 63347810 95021715 190043430