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30627245 = 511556859
BaseRepresentation
bin111010011010…
…1010110101101
32010122000200102
41310311112231
530320032440
63012240445
7521220155
oct164652655
963560612
1030627245
1116319780
12a310125
13646463c
1440d3765
152a4eb15
hex1d355ad

30627245 has 8 divisors (see below), whose sum is σ = 40093920. Its totient is φ = 22274320.

The previous prime is 30627209. The next prime is 30627257. The reversal of 30627245 is 54272603.

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

It is not a de Polignac number, because 30627245 - 212 = 30623149 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278375 + ... + 278484.

It is an arithmetic number, because the mean of its divisors is an integer number (5011740).

Almost surely, 230627245 is an apocalyptic number.

It is an amenable number.

30627245 is a deficient number, since it is larger than the sum of its proper divisors (9466675).

30627245 is a wasteful number, since it uses less digits than its factorization.

30627245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556875.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 30627245 is about 5534.1887391017. The cubic root of 30627245 is about 312.8738821006.

Adding to 30627245 its reverse (54272603), we get a palindrome (84899848).

The spelling of 30627245 in words is "thirty million, six hundred twenty-seven thousand, two hundred forty-five".

Divisors: 1 5 11 55 556859 2784295 6125449 30627245