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30750342 = 2372104593
BaseRepresentation
bin111010101001…
…1011010000110
32010212021112120
41311103122012
530333002332
63015030410
7522242100
oct165233206
963767476
1030750342
11163a3207
12a36b406
1364a868c
144126570
152a7632c
hex1d53686

30750342 has 24 divisors (see below), whose sum is σ = 71542296. Its totient is φ = 8785728.

The previous prime is 30750337. The next prime is 30750347. The reversal of 30750342 is 24305703.

It is an interprime number because it is at equal distance from previous prime (30750337) and next prime (30750347).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30750347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52003 + ... + 52590.

It is an arithmetic number, because the mean of its divisors is an integer number (2980929).

Almost surely, 230750342 is an apocalyptic number.

30750342 is an abundant number, since it is smaller than the sum of its proper divisors (40791954).

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

30750342 is a wasteful number, since it uses less digits than its factorization.

30750342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104612 (or 104605 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 30750342 is about 5545.2990902205. The cubic root of 30750342 is about 313.2924892689.

The spelling of 30750342 in words is "thirty million, seven hundred fifty thousand, three hundred forty-two".

Divisors: 1 2 3 6 7 14 21 42 49 98 147 294 104593 209186 313779 627558 732151 1464302 2196453 4392906 5125057 10250114 15375171 30750342