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30220614 = 2341011847
BaseRepresentation
bin111001101001…
…0000101000110
32002212100220000
41303102011012
530214024424
62555422130
7514604514
oct163220506
962770800
1030220614
1116071216
12a154946
136351528
1440294b4
1529be3c9
hex1cd2146

30220614 has 40 divisors (see below), whose sum is σ = 68424048. Its totient is φ = 9968400.

The previous prime is 30220591. The next prime is 30220633. The reversal of 30220614 is 41602203.

It is a happy number.

30220614 is a `hidden beast` number, since 30 + 2 + 20 + 614 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15439 + ... + 17285.

Almost surely, 230220614 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30220614, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34212024).

30220614 is an abundant number, since it is smaller than the sum of its proper divisors (38203434).

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

30220614 is a wasteful number, since it uses less digits than its factorization.

30220614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1962 (or 1953 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 30220614 is about 5497.3278963511. The cubic root of 30220614 is about 311.4830566873.

Adding to 30220614 its reverse (41602203), we get a palindrome (71822817).

The spelling of 30220614 in words is "thirty million, two hundred twenty thousand, six hundred fourteen".

Divisors: 1 2 3 6 9 18 27 54 81 101 162 202 303 606 909 1818 1847 2727 3694 5454 5541 8181 11082 16362 16623 33246 49869 99738 149607 186547 299214 373094 559641 1119282 1678923 3357846 5036769 10073538 15110307 30220614