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30400233 = 317596083
BaseRepresentation
bin111001111110…
…1111011101001
32010012111021120
41303331323221
530240301413
63003325453
7516253263
oct163757351
963174246
1030400233
1116184166
12a220889
1363b5206
144074b33
152a07723
hex1cfdee9

30400233 has 8 divisors (see below), whose sum is σ = 42918048. Its totient is φ = 19074624.

The previous prime is 30400231. The next prime is 30400241. The reversal of 30400233 is 33200403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30400233 - 21 = 30400231 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30400231) 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, 297991 + ... + 298092.

It is an arithmetic number, because the mean of its divisors is an integer number (5364756).

Almost surely, 230400233 is an apocalyptic number.

It is an amenable number.

30400233 is a deficient number, since it is larger than the sum of its proper divisors (12517815).

30400233 is a wasteful number, since it uses less digits than its factorization.

30400233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596103.

The product of its (nonzero) digits is 216, while the sum is 15.

The square root of 30400233 is about 5513.6406302914. The cubic root of 30400233 is about 312.0989474956.

Adding to 30400233 its reverse (33200403), we get a palindrome (63600636).

The spelling of 30400233 in words is "thirty million, four hundred thousand, two hundred thirty-three".

Divisors: 1 3 17 51 596083 1788249 10133411 30400233