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30740394 = 235123399
BaseRepresentation
bin111010101000…
…0111110101010
32010211202220010
41311100332222
530332143034
63014512350
7522201066
oct165207652
963752803
1030740394
1116396793
12a3656b6
1364a3ca9
144122aa6
152a733e9
hex1d50faa

30740394 has 8 divisors (see below), whose sum is σ = 61480800. Its totient is φ = 10246796.

The previous prime is 30740393. The next prime is 30740431. The reversal of 30740394 is 49304703.

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

30740394 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (30740393) 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, 2561694 + ... + 2561705.

It is an arithmetic number, because the mean of its divisors is an integer number (7685100).

Almost surely, 230740394 is an apocalyptic number.

30740394 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30740394 is a wasteful number, since it uses less digits than its factorization.

30740394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5123404.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 30740394 is about 5544.4020416994. The cubic root of 30740394 is about 313.2587013538.

The spelling of 30740394 in words is "thirty million, seven hundred forty thousand, three hundred ninety-four".

Divisors: 1 2 3 6 5123399 10246798 15370197 30740394