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30361086 = 23272291187
BaseRepresentation
bin111001111010…
…0010111111110
32010010111120200
41303310113332
530233023321
63002424330
7516031200
oct163642776
963114520
1030361086
1116157808
12a2020a6
1363a0452
144064770
1529ead26
hex1cf45fe

30361086 has 72 divisors (see below), whose sum is σ = 79227720. Its totient is φ = 8368416.

The previous prime is 30361073. The next prime is 30361087. The reversal of 30361086 is 68016303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30361087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 24985 + ... + 26171.

It is an arithmetic number, because the mean of its divisors is an integer number (1100385).

Almost surely, 230361086 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30361086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39613860).

30361086 is an abundant number, since it is smaller than the sum of its proper divisors (48866634).

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

30361086 is a wasteful number, since it uses less digits than its factorization.

30361086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238 (or 1228 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 30361086 is about 5510.0894729578. The cubic root of 30361086 is about 311.9649245579.

Adding to 30361086 its reverse (68016303), we get a palindrome (98377389).

The spelling of 30361086 in words is "thirty million, three hundred sixty-one thousand, eighty-six".

Divisors: 1 2 3 6 7 9 14 18 21 29 42 49 58 63 87 98 126 147 174 203 261 294 406 441 522 609 882 1187 1218 1421 1827 2374 2842 3561 3654 4263 7122 8309 8526 10683 12789 16618 21366 24927 25578 34423 49854 58163 68846 74781 103269 116326 149562 174489 206538 240961 309807 348978 481922 523467 619614 722883 1046934 1445766 1686727 2168649 3373454 4337298 5060181 10120362 15180543 30361086