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194358420 = 22335536791
BaseRepresentation
bin10111001010110…
…10110010010100
3111112201102122000
423211122302110
5344223432140
631141435300
74550006424
oct1345326224
9445642560
10194358420
119a78a3a3
125510bb30
13313604a9
141bb54484
15120e2a30
hexb95ac94

194358420 has 96 divisors (see below), whose sum is σ = 616170240. Its totient is φ = 50843520.

The previous prime is 194358413. The next prime is 194358421. The reversal of 194358420 is 24853491.

194358420 is a `hidden beast` number, since 19 + 43 + 584 + 20 = 666.

194358420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194358421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25225 + ... + 32015.

It is an arithmetic number, because the mean of its divisors is an integer number (6418440).

Almost surely, 2194358420 is an apocalyptic number.

194358420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 194358420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308085120).

194358420 is an abundant number, since it is smaller than the sum of its proper divisors (421811820).

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

194358420 is a wasteful number, since it uses less digits than its factorization.

194358420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6862 (or 6854 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 194358420 is about 13941.2488680175. The cubic root of 194358420 is about 579.2523263280.

The spelling of 194358420 in words is "one hundred ninety-four million, three hundred fifty-eight thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 53 54 60 90 106 108 135 159 180 212 265 270 318 477 530 540 636 795 954 1060 1431 1590 1908 2385 2862 3180 4770 5724 6791 7155 9540 13582 14310 20373 27164 28620 33955 40746 61119 67910 81492 101865 122238 135820 183357 203730 244476 305595 359923 366714 407460 611190 719846 733428 916785 1079769 1222380 1439692 1799615 1833570 2159538 3239307 3599230 3667140 4319076 5398845 6478614 7198460 9717921 10797690 12957228 16196535 19435842 21595380 32393070 38871684 48589605 64786140 97179210 194358420