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30361422 = 23713173271
BaseRepresentation
bin111001111010…
…0011101001110
32010010112001010
41303310131032
530233031142
63002430050
7516032160
oct163643516
963115033
1030361422
1116157a93
12a202326
1363a0650
144064930
1529eae9c
hex1cf474e

30361422 has 64 divisors (see below), whose sum is σ = 79156224. Its totient is φ = 7534080.

The previous prime is 30361417. The next prime is 30361427. The reversal of 30361422 is 22416303.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30361417) and next prime (30361427).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30361427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7647 + ... + 10917.

It is an arithmetic number, because the mean of its divisors is an integer number (1236816).

Almost surely, 230361422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30361422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39578112).

30361422 is an abundant number, since it is smaller than the sum of its proper divisors (48794802).

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

30361422 is a wasteful number, since it uses less digits than its factorization.

30361422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3313.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 30361422 is about 5510.1199623965. The cubic root of 30361422 is about 311.9660753712.

Adding to 30361422 its reverse (22416303), we get a palindrome (52777725).

The spelling of 30361422 in words is "thirty million, three hundred sixty-one thousand, four hundred twenty-two".

Divisors: 1 2 3 6 7 13 14 17 21 26 34 39 42 51 78 91 102 119 182 221 238 273 357 442 546 663 714 1326 1547 3094 3271 4641 6542 9282 9813 19626 22897 42523 45794 55607 68691 85046 111214 127569 137382 166821 255138 297661 333642 389249 595322 722891 778498 892983 1167747 1445782 1785966 2168673 2335494 4337346 5060237 10120474 15180711 30361422