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30818088 = 23327471301
BaseRepresentation
bin111010110001…
…1111100101000
32010222201110200
41311203330220
530342134323
63020312200
7522643440
oct165437450
963881420
1030818088
111643a0a4
12a3a2660
136500472
144143120
152a8b443
hex1d63f28

30818088 has 96 divisors (see below), whose sum is σ = 97493760. Its totient is φ = 8611200.

The previous prime is 30818083. The next prime is 30818131. The reversal of 30818088 is 88081803.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (30818083) 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, 23038 + ... + 24338.

It is an arithmetic number, because the mean of its divisors is an integer number (1015560).

Almost surely, 230818088 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 30818088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48746880).

30818088 is an abundant number, since it is smaller than the sum of its proper divisors (66675672).

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

30818088 is a wasteful number, since it uses less digits than its factorization.

30818088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367 (or 1360 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The square root of 30818088 is about 5551.4041467002. The cubic root of 30818088 is about 313.5223918135.

The spelling of 30818088 in words is "thirty million, eight hundred eighteen thousand, eighty-eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 42 47 56 63 72 84 94 126 141 168 188 252 282 329 376 423 504 564 658 846 987 1128 1301 1316 1692 1974 2602 2632 2961 3384 3903 3948 5204 5922 7806 7896 9107 10408 11709 11844 15612 18214 23418 23688 27321 31224 36428 46836 54642 61147 72856 81963 93672 109284 122294 163926 183441 218568 244588 327852 366882 428029 489176 550323 655704 733764 856058 1100646 1284087 1467528 1712116 2201292 2568174 3424232 3852261 4402584 5136348 7704522 10272696 15409044 30818088