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30742607 = 731141671
BaseRepresentation
bin111010101000…
…1100001001111
32010211212221002
41311101201033
530332230412
63014530515
7522210410
oct165214117
963755832
1030742607
1116398415
12a366a3b
1364a4cbc
144123807
152a73dc2
hex1d5184f

30742607 has 8 divisors (see below), whose sum is σ = 36268032. Its totient is φ = 25500600.

The previous prime is 30742603. The next prime is 30742631. The reversal of 30742607 is 70624703.

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

It is not a de Polignac number, because 30742607 - 22 = 30742603 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30742607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30742601) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 70619 + ... + 71052.

It is an arithmetic number, because the mean of its divisors is an integer number (4533504).

Almost surely, 230742607 is an apocalyptic number.

30742607 is a deficient number, since it is larger than the sum of its proper divisors (5525425).

30742607 is a wasteful number, since it uses less digits than its factorization.

30742607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141709.

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 30742607 is about 5544.6016087723. The cubic root of 30742607 is about 313.2662183348.

The spelling of 30742607 in words is "thirty million, seven hundred forty-two thousand, six hundred seven".

Divisors: 1 7 31 217 141671 991697 4391801 30742607