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194374242 = 2352317389
BaseRepresentation
bin10111001010111…
…10101001100010
3111112202020100000
423211132221202
5344224433432
631142040430
74550103516
oct1345365142
9445666300
10194374242
119a7a0277
1255119116
133136775a
141bb5a146
15120e757c
hexb95ea62

194374242 has 48 divisors (see below), whose sum is σ = 455757120. Its totient is φ = 61970832.

The previous prime is 194374241. The next prime is 194374249. The reversal of 194374242 is 242473491.

It is a junction number, because it is equal to n+sod(n) for n = 194374197 and 194374206.

It is not an unprimeable number, because it can be changed into a prime (194374241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2484 + ... + 19872.

It is an arithmetic number, because the mean of its divisors is an integer number (9494940).

Almost surely, 2194374242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 194374242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227878560).

194374242 is an abundant number, since it is smaller than the sum of its proper divisors (261382878).

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

194374242 is a wasteful number, since it uses less digits than its factorization.

194374242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17429 (or 17417 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 194374242 is about 13941.8163092188. The cubic root of 194374242 is about 579.2680441646.

The spelling of 194374242 in words is "one hundred ninety-four million, three hundred seventy-four thousand, two hundred forty-two".

Divisors: 1 2 3 6 9 18 23 27 46 54 69 81 138 162 207 243 414 486 621 1242 1863 3726 5589 11178 17389 34778 52167 104334 156501 313002 399947 469503 799894 939006 1199841 1408509 2399682 2817018 3599523 4225527 7199046 8451054 10798569 21597138 32395707 64791414 97187121 194374242