Search a number
-
+
15030108 = 22321741599
BaseRepresentation
bin111001010101…
…011101011100
31001021121102200
4321111131130
512321430413
61254051500
7241516362
oct71253534
931247380
1015030108
118536385
125049b90
133163272
141dd3632
1514bd573
hexe5575c

15030108 has 72 divisors (see below), whose sum is σ = 41277600. Its totient is φ = 4592640.

The previous prime is 15030107. The next prime is 15030137. The reversal of 15030108 is 80103051.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15030107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24793 + ... + 25391.

It is an arithmetic number, because the mean of its divisors is an integer number (573300).

Almost surely, 215030108 is an apocalyptic number.

15030108 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15030108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20638800).

15030108 is an abundant number, since it is smaller than the sum of its proper divisors (26247492).

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

15030108 is a wasteful number, since it uses less digits than its factorization.

15030108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667 (or 662 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 15030108 is about 3876.8683237892. The cubic root of 15030108 is about 246.7861031851.

Adding to 15030108 its reverse (80103051), we get a palindrome (95133159).

The spelling of 15030108 in words is "fifteen million, thirty thousand, one hundred eight".

Divisors: 1 2 3 4 6 9 12 17 18 34 36 41 51 68 82 102 123 153 164 204 246 306 369 492 599 612 697 738 1198 1394 1476 1797 2091 2396 2788 3594 4182 5391 6273 7188 8364 10183 10782 12546 20366 21564 24559 25092 30549 40732 49118 61098 73677 91647 98236 122196 147354 183294 221031 294708 366588 417503 442062 835006 884124 1252509 1670012 2505018 3757527 5010036 7515054 15030108