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30742323 = 319539339
BaseRepresentation
bin111010101000…
…1011100110011
32010211212112120
41311101130303
530332223243
63014525323
7522206523
oct165213463
963755476
1030742323
1116398187
12a366843
1364a4b31
144123683
152a73c83
hex1d51733

30742323 has 8 divisors (see below), whose sum is σ = 43147200. Its totient is φ = 19416168.

The previous prime is 30742303. The next prime is 30742357. The reversal of 30742323 is 32324703.

It is a happy number.

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

It is not a de Polignac number, because 30742323 - 26 = 30742259 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30742293 and 30742302.

It is not an unprimeable number, because it can be changed into a prime (30742303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269613 + ... + 269726.

It is an arithmetic number, because the mean of its divisors is an integer number (5393400).

Almost surely, 230742323 is an apocalyptic number.

30742323 is a deficient number, since it is larger than the sum of its proper divisors (12404877).

30742323 is a wasteful number, since it uses less digits than its factorization.

30742323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539361.

The product of its (nonzero) digits is 3024, while the sum is 24.

The square root of 30742323 is about 5544.5759982166. The cubic root of 30742323 is about 313.2652536814.

The spelling of 30742323 in words is "thirty million, seven hundred forty-two thousand, three hundred twenty-three".

Divisors: 1 3 19 57 539339 1618017 10247441 30742323