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30418052 = 22723149317
BaseRepresentation
bin111010000001…
…0010010000100
32010020101201112
41310002102010
530241334202
63003544152
7516356240
oct164022204
963211645
1030418052
1116196595
12a22b058
1363c0362
14407b420
152a0cb52
hex1d02484

30418052 has 48 divisors (see below), whose sum is σ = 64108800. Its totient is φ = 12346752.

The previous prime is 30418051. The next prime is 30418057. The reversal of 30418052 is 25081403.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (30418051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95798 + ... + 96114.

It is an arithmetic number, because the mean of its divisors is an integer number (1335600).

Almost surely, 230418052 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30418052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32054400).

30418052 is an abundant number, since it is smaller than the sum of its proper divisors (33690748).

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

30418052 is a wasteful number, since it uses less digits than its factorization.

30418052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500 (or 498 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 30418052 is about 5515.2562950420. The cubic root of 30418052 is about 312.1599141875.

Adding to 30418052 its reverse (25081403), we get a palindrome (55499455).

The spelling of 30418052 in words is "thirty million, four hundred eighteen thousand, fifty-two".

Divisors: 1 2 4 7 14 23 28 46 92 149 161 298 317 322 596 634 644 1043 1268 2086 2219 3427 4172 4438 6854 7291 8876 13708 14582 23989 29164 47233 47978 51037 94466 95956 102074 188932 204148 330631 661262 1086359 1322524 2172718 4345436 7604513 15209026 30418052