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30750354 = 234189817
BaseRepresentation
bin111010101001…
…1011010010010
32010212021120000
41311103122102
530333002404
63015030430
7522242115
oct165233222
963767500
1030750354
11163a3218
12a36b416
1364a869b
14412657c
152a76339
hex1d53692

30750354 has 20 divisors (see below), whose sum is σ = 68903934. Its totient is φ = 10250064.

The previous prime is 30750347. The next prime is 30750373. The reversal of 30750354 is 45305703.

It is a happy number.

30750354 is a `hidden beast` number, since 307 + 5 + 0 + 354 = 666.

It can be written as a sum of positive squares in only one way, i.e., 20657025 + 10093329 = 4545^2 + 3177^2 .

It is a super-2 number, since 2×307503542 = 1891168542250632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 94747 + ... + 95070.

Almost surely, 230750354 is an apocalyptic number.

30750354 is an abundant number, since it is smaller than the sum of its proper divisors (38153580).

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

30750354 is a wasteful number, since it uses less digits than its factorization.

30750354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189831 (or 189822 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 27.

The square root of 30750354 is about 5545.3001722179. The cubic root of 30750354 is about 313.2925300219.

The spelling of 30750354 in words is "thirty million, seven hundred fifty thousand, three hundred fifty-four".

Divisors: 1 2 3 6 9 18 27 54 81 162 189817 379634 569451 1138902 1708353 3416706 5125059 10250118 15375177 30750354