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475421190 = 235612391087
BaseRepresentation
bin11100010101100…
…101101000000110
31020010120220021020
4130111211220012
51433201434230
6115101532010
714532004416
oct3425455006
91203526236
10475421190
112243a9a82
12113274006
137765a81a
14471d8646
152bb10810
hex1c565a06

475421190 has 64 divisors (see below), whose sum is σ = 1165639680. Its totient is φ = 124064640.

The previous prime is 475421159. The next prime is 475421197. The reversal of 475421190 is 91124574.

It is a happy number.

It is a super-2 number, since 2×4754211902 = 452050615802032200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475421197) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 436827 + ... + 437913.

It is an arithmetic number, because the mean of its divisors is an integer number (18213120).

Almost surely, 2475421190 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 475421190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (582819840).

475421190 is an abundant number, since it is smaller than the sum of its proper divisors (690218490).

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

475421190 is a wasteful number, since it uses less digits than its factorization.

475421190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 475421190 is about 21804.1553379167. The cubic root of 475421190 is about 780.4759258544.

The spelling of 475421190 in words is "four hundred seventy-five million, four hundred twenty-one thousand, one hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 61 122 183 239 305 366 478 610 717 915 1087 1195 1434 1830 2174 2390 3261 3585 5435 6522 7170 10870 14579 16305 29158 32610 43737 66307 72895 87474 132614 145790 198921 218685 259793 331535 397842 437370 519586 663070 779379 994605 1298965 1558758 1989210 2597930 3896895 7793790 15847373 31694746 47542119 79236865 95084238 158473730 237710595 475421190