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30627669 = 313177933
BaseRepresentation
bin111010011010…
…1011101010101
32010122001021010
41310311131111
530320041134
63012242433
7521221332
oct164653525
963561233
1030627669
111631a026
12a310419
1364648a7
1440d3989
152a4ece9
hex1d35755

30627669 has 8 divisors (see below), whose sum is σ = 41149152. Its totient is φ = 20262320.

The previous prime is 30627647. The next prime is 30627689. The reversal of 30627669 is 96672603.

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

It is a cyclic number.

It is not a de Polignac number, because 30627669 - 28 = 30627413 is a prime.

It is a super-2 number, since 2×306276692 = 1876108216747122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30627689) 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, 38574 + ... + 39359.

It is an arithmetic number, because the mean of its divisors is an integer number (5143644).

Almost surely, 230627669 is an apocalyptic number.

It is an amenable number.

30627669 is a deficient number, since it is larger than the sum of its proper divisors (10521483).

30627669 is a wasteful number, since it uses less digits than its factorization.

30627669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78067.

The product of its (nonzero) digits is 81648, while the sum is 39.

The square root of 30627669 is about 5534.2270463001. The cubic root of 30627669 is about 312.8753258904.

It can be divided in two parts, 3062 and 7669, that added together give a triangular number (10731 = T146).

The spelling of 30627669 in words is "thirty million, six hundred twenty-seven thousand, six hundred sixty-nine".

Divisors: 1 3 131 393 77933 233799 10209223 30627669