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30734930 = 253073493
BaseRepresentation
bin111010100111…
…1101001010010
32010211111101202
41311033221102
530332004210
63014431202
7522146132
oct165175122
963744352
1030734930
1116392676
12a362502
1364a1665
144120ac2
152a719a5
hex1d4fa52

30734930 has 8 divisors (see below), whose sum is σ = 55322892. Its totient is φ = 12293968.

The previous prime is 30734927. The next prime is 30734933. The reversal of 30734930 is 3943703.

It is an interprime number because it is at equal distance from previous prime (30734927) and next prime (30734933).

It can be written as a sum of positive squares in 2 ways, for example, as 27888961 + 2845969 = 5281^2 + 1687^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 30734893 and 30734902.

It is not an unprimeable number, because it can be changed into a prime (30734933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1536737 + ... + 1536756.

Almost surely, 230734930 is an apocalyptic number.

30734930 is a deficient number, since it is larger than the sum of its proper divisors (24587962).

30734930 is a wasteful number, since it uses less digits than its factorization.

30734930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3073500.

The product of its (nonzero) digits is 6804, while the sum is 29.

The square root of 30734930 is about 5543.9092705419. The cubic root of 30734930 is about 313.2401400328.

The spelling of 30734930 in words is "thirty million, seven hundred thirty-four thousand, nine hundred thirty".

Divisors: 1 2 5 10 3073493 6146986 15367465 30734930