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8145293190 = 2351087249779
BaseRepresentation
bin1111001010111111…
…10100111110000110
3210000122210202200120
413211133310332012
5113140143340230
63424125522410
7405563564316
oct74537647606
923018722616
108145293190
1134aa895371
1216b3a13406
139ca684818
14573ac9446
1532a14a310
hex1e57f4f86

8145293190 has 32 divisors (see below), whose sum is σ = 19566766080. Its totient is φ = 2170071264.

The previous prime is 8145293171. The next prime is 8145293239. The reversal of 8145293190 is 913925418.

It is a super-2 number, since 2×81452931902 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92280 + ... + 157499.

It is an arithmetic number, because the mean of its divisors is an integer number (611461440).

Almost surely, 28145293190 is an apocalyptic number.

8145293190 is an abundant number, since it is smaller than the sum of its proper divisors (11421472890).

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

8145293190 is a wasteful number, since it uses less digits than its factorization.

8145293190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250876.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 8145293190 is about 90251.2780518924. The cubic root of 8145293190 is about 2012.0351975722.

The spelling of 8145293190 in words is "eight billion, one hundred forty-five million, two hundred ninety-three thousand, one hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 1087 2174 3261 5435 6522 10870 16305 32610 249779 499558 749337 1248895 1498674 2497790 3746685 7493370 271509773 543019546 814529319 1357548865 1629058638 2715097730 4072646595 8145293190