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30740090 = 253074009
BaseRepresentation
bin111010101000…
…0111001111010
32010211202110212
41311100321322
530332140330
63014511122
7522200153
oct165207172
963752425
1030740090
1116396537
12a3654a2
1364a3b04
14412292a
152a73295
hex1d50e7a

30740090 has 8 divisors (see below), whose sum is σ = 55332180. Its totient is φ = 12296032.

The previous prime is 30740051. The next prime is 30740117. The reversal of 30740090 is 9004703.

It can be written as a sum of positive squares in 2 ways, for example, as 30393169 + 346921 = 5513^2 + 589^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1536995 + ... + 1537014.

Almost surely, 230740090 is an apocalyptic number.

30740090 is a deficient number, since it is larger than the sum of its proper divisors (24592090).

30740090 is a wasteful number, since it uses less digits than its factorization.

30740090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3074016.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 30740090 is about 5544.3746265923. The cubic root of 30740090 is about 313.2576687173.

Adding to 30740090 its reverse (9004703), we get a palindrome (39744793).

The spelling of 30740090 in words is "thirty million, seven hundred forty thousand, ninety".

Divisors: 1 2 5 10 3074009 6148018 15370045 30740090