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30103194 = 2311456109
BaseRepresentation
bin111001011010…
…1011010011010
32002122101211010
41302311122122
530201300234
62553114350
7513605262
oct162653232
962571733
1030103194
1115aa0a80
12a0b89b6
13630cc54
143dd87a2
1529996e9
hex1cb569a

30103194 has 16 divisors (see below), whose sum is σ = 65679840. Its totient is φ = 9122160.

The previous prime is 30103193. The next prime is 30103207. The reversal of 30103194 is 49130103.

It is a self number, because there is not a number n which added to its sum of digits gives 30103194.

It is not an unprimeable number, because it can be changed into a prime (30103193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227989 + ... + 228120.

It is an arithmetic number, because the mean of its divisors is an integer number (4104990).

Almost surely, 230103194 is an apocalyptic number.

30103194 is an abundant number, since it is smaller than the sum of its proper divisors (35576646).

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

30103194 is a wasteful number, since it uses less digits than its factorization.

30103194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456125.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 30103194 is about 5486.6377682512. The cubic root of 30103194 is about 311.0791181482.

Adding to 30103194 its reverse (49130103), we get a palindrome (79233297).

The spelling of 30103194 in words is "thirty million, one hundred three thousand, one hundred ninety-four".

Divisors: 1 2 3 6 11 22 33 66 456109 912218 1368327 2736654 5017199 10034398 15051597 30103194