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194130430 = 25131493311
BaseRepresentation
bin10111001001000…
…11000111111110
3111112021211212221
423210203013332
5344144133210
631132515554
74545036634
oct1344430776
9445254787
10194130430
119a64407a
125501bbba
13312b07a0
141bad5354
151209a1da
hexb9231fe

194130430 has 16 divisors (see below), whose sum is σ = 376314624. Its totient is φ = 71678880.

The previous prime is 194130407. The next prime is 194130451. The reversal of 194130430 is 34031491.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 194130395 and 194130404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 746526 + ... + 746785.

It is an arithmetic number, because the mean of its divisors is an integer number (23519664).

Almost surely, 2194130430 is an apocalyptic number.

194130430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

194130430 is a deficient number, since it is larger than the sum of its proper divisors (182184194).

194130430 is a wasteful number, since it uses less digits than its factorization.

194130430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493331.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 194130430 is about 13933.0696546023. The cubic root of 194130430 is about 579.0257425244.

The spelling of 194130430 in words is "one hundred ninety-four million, one hundred thirty thousand, four hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 1493311 2986622 7466555 14933110 19413043 38826086 97065215 194130430