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30115704 = 23317223331
BaseRepresentation
bin111001011100…
…0011101111000
32002200000222110
41302320131320
530202200304
62553252320
7513656613
oct162703570
962600873
1030115704
1115aaa413
12a1040a0
136315858
143ddd17a
15299d289
hex1cb8778

30115704 has 64 divisors (see below), whose sum is σ = 80317440. Its totient is φ = 9377280.

The previous prime is 30115697. The next prime is 30115711. The reversal of 30115704 is 40751103.

It is an interprime number because it is at equal distance from previous prime (30115697) and next prime (30115711).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90819 + ... + 91149.

It is an arithmetic number, because the mean of its divisors is an integer number (1254960).

Almost surely, 230115704 is an apocalyptic number.

30115704 is a gapful number since it is divisible by the number (34) 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 30115704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40158720).

30115704 is an abundant number, since it is smaller than the sum of its proper divisors (50201736).

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

30115704 is a wasteful number, since it uses less digits than its factorization.

30115704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580 (or 576 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 30115704 is about 5487.7776922904. Note that the first 3 decimals coincide. The cubic root of 30115704 is about 311.1222039507.

Adding to 30115704 its reverse (40751103), we get a palindrome (70866807).

The spelling of 30115704 in words is "thirty million, one hundred fifteen thousand, seven hundred four".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 102 136 204 223 331 408 446 662 669 892 993 1324 1338 1784 1986 2648 2676 3791 3972 5352 5627 7582 7944 11254 11373 15164 16881 22508 22746 30328 33762 45016 45492 67524 73813 90984 135048 147626 221439 295252 442878 590504 885756 1254821 1771512 2509642 3764463 5019284 7528926 10038568 15057852 30115704