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30499338 = 236775869
BaseRepresentation
bin111010001011…
…0001000001010
32010101112020010
41310112020022
530301434323
63005412350
7520145232
oct164261012
963345203
1030499338
1116241671
12a26a0b6
13641b35c
14409ccc2
152a26c93
hex1d1620a

30499338 has 16 divisors (see below), whose sum is σ = 61909920. Its totient is φ = 10014576.

The previous prime is 30499307. The next prime is 30499361. The reversal of 30499338 is 83399403.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30499296 and 30499305.

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, 37533 + ... + 38336.

It is an arithmetic number, because the mean of its divisors is an integer number (3869370).

Almost surely, 230499338 is an apocalyptic number.

30499338 is an abundant number, since it is smaller than the sum of its proper divisors (31410582).

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

30499338 is a wasteful number, since it uses less digits than its factorization.

30499338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75941.

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 30499338 is about 5522.6205736045. The cubic root of 30499338 is about 312.4377279652.

The spelling of 30499338 in words is "thirty million, four hundred ninety-nine thousand, three hundred thirty-eight".

Divisors: 1 2 3 6 67 134 201 402 75869 151738 227607 455214 5083223 10166446 15249669 30499338