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30072622 = 2131114781
BaseRepresentation
bin111001010110…
…1111100101110
32002120211212211
41302231330232
530144310442
62552321034
7513420166
oct162557456
962524784
1030072622
1115a80008
12a0a317a
1362cc068
143dcb5a6
152990617
hex1cadf2e

30072622 has 8 divisors (see below), whose sum is σ = 45453672. Its totient is φ = 14921400.

The previous prime is 30072617. The next prime is 30072631. The reversal of 30072622 is 22627003.

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

It is a junction number, because it is equal to n+sod(n) for n = 30072593 and 30072602.

It is a congruent number.

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, 57129 + ... + 57652.

It is an arithmetic number, because the mean of its divisors is an integer number (5681709).

Almost surely, 230072622 is an apocalyptic number.

30072622 is a deficient number, since it is larger than the sum of its proper divisors (15381050).

30072622 is a wasteful number, since it uses less digits than its factorization.

30072622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114914.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 30072622 is about 5483.8510191288. The cubic root of 30072622 is about 310.9737745968.

Adding to 30072622 its reverse (22627003), we get a palindrome (52699625).

The spelling of 30072622 in words is "thirty million, seventy-two thousand, six hundred twenty-two".

Divisors: 1 2 131 262 114781 229562 15036311 30072622