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140025446 = 2117980567
BaseRepresentation
bin10000101100010…
…01111001100110
3100202111000210122
420112021321212
5241321303241
621521121542
73320124311
oct1026117146
9322430718
10140025446
117204a210
123aa892b2
1323018ac2
141484d978
15c45e04b
hex8589e66

140025446 has 16 divisors (see below), whose sum is σ = 232035840. Its totient is φ = 62841480.

The previous prime is 140025409. The next prime is 140025469. The reversal of 140025446 is 644520041.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38546 + ... + 42021.

It is an arithmetic number, because the mean of its divisors is an integer number (14502240).

Almost surely, 2140025446 is an apocalyptic number.

140025446 is a deficient number, since it is larger than the sum of its proper divisors (92010394).

140025446 is a wasteful number, since it uses less digits than its factorization.

140025446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80659.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 140025446 is about 11833.2348071016. The cubic root of 140025446 is about 519.2808673757.

Adding to 140025446 its reverse (644520041), we get a palindrome (784545487).

The spelling of 140025446 in words is "one hundred forty million, twenty-five thousand, four hundred forty-six".

Divisors: 1 2 11 22 79 158 869 1738 80567 161134 886237 1772474 6364793 12729586 70012723 140025446