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1900394270 = 25190039427
BaseRepresentation
bin111000101000101…
…1011011100011110
311220102221000211222
41301101123130132
512343000104040
6512324013342
765044041035
oct16121333436
94812830758
101900394270
118957a5385
12450531252
13243941168
1414056b71c
15b1c89bb5
hex7145b71e

1900394270 has 8 divisors (see below), whose sum is σ = 3420709704. Its totient is φ = 760157704.

The previous prime is 1900394227. The next prime is 1900394299. The reversal of 1900394270 is 724930091.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×19003942702 = 7222996762897665800, 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 1900394270.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 95019704 + ... + 95019723.

It is an arithmetic number, because the mean of its divisors is an integer number (427588713).

Almost surely, 21900394270 is an apocalyptic number.

1900394270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1900394270 is a deficient number, since it is larger than the sum of its proper divisors (1520315434).

1900394270 is a wasteful number, since it uses less digits than its factorization.

1900394270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190039434.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 1900394270 is about 43593.5117878796. The cubic root of 1900394270 is about 1238.6479952786.

The spelling of 1900394270 in words is "one billion, nine hundred million, three hundred ninety-four thousand, two hundred seventy".

Divisors: 1 2 5 10 190039427 380078854 950197135 1900394270