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30690616 = 2311348757
BaseRepresentation
bin111010100010…
…0110100111000
32010202020121111
41311010310320
530324044431
63013450104
7521603005
oct165046470
963666544
1030690616
1116362350
12a340934
136487438
14410c8ac
152a637b1
hex1d44d38

30690616 has 16 divisors (see below), whose sum is σ = 62776440. Its totient is φ = 13950240.

The previous prime is 30690571. The next prime is 30690617. The reversal of 30690616 is 61609603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30690617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174291 + ... + 174466.

Almost surely, 230690616 is an apocalyptic number.

It is an amenable number.

30690616 is an abundant number, since it is smaller than the sum of its proper divisors (32085824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30690616 is a wasteful number, since it uses less digits than its factorization.

30690616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348774 (or 348770 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 30690616 is about 5539.9111906239. The cubic root of 30690616 is about 313.0895231273.

The spelling of 30690616 in words is "thirty million, six hundred ninety thousand, six hundred sixteen".

Divisors: 1 2 4 8 11 22 44 88 348757 697514 1395028 2790056 3836327 7672654 15345308 30690616