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1438145710 = 25541265831
BaseRepresentation
bin101010110111000…
…0101110010101110
310201020010101000221
41111232011302232
510421131130320
6354412241554
750432015431
oct12556056256
93636111027
101438145710
11678883181
123417702ba
1319bc462c1
14d9001818
15863cc3aa
hex55b85cae

1438145710 has 16 divisors (see below), whose sum is σ = 2593456992. Its totient is φ = 574192800.

The previous prime is 1438145693. The next prime is 1438145729. The reversal of 1438145710 is 175418341.

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 7 ways as a sum of consecutive naturals, for example, 127506 + ... + 138325.

It is an arithmetic number, because the mean of its divisors is an integer number (162091062).

Almost surely, 21438145710 is an apocalyptic number.

1438145710 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1438145710 is a deficient number, since it is larger than the sum of its proper divisors (1155311282).

1438145710 is a wasteful number, since it uses less digits than its factorization.

1438145710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266379.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 1438145710 is about 37922.8916355280. The cubic root of 1438145710 is about 1128.7583170941.

The spelling of 1438145710 in words is "one billion, four hundred thirty-eight million, one hundred forty-five thousand, seven hundred ten".

Divisors: 1 2 5 10 541 1082 2705 5410 265831 531662 1329155 2658310 143814571 287629142 719072855 1438145710