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30522888 = 233211172267
BaseRepresentation
bin111010001101…
…1111000001000
32010102201112100
41310123320020
530303213023
63010113400
7520304004
oct164337010
963381470
1030522888
1116258330
12a27b860
136428ca6
1440a7704
152a2dc43
hex1d1be08

30522888 has 96 divisors (see below), whose sum is σ = 95528160. Its totient is φ = 8701440.

The previous prime is 30522887. The next prime is 30522889. The reversal of 30522888 is 88822503.

It is an interprime number because it is at equal distance from previous prime (30522887) and next prime (30522889).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30522887) 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, 12331 + ... + 14597.

It is an arithmetic number, because the mean of its divisors is an integer number (995085).

Almost surely, 230522888 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 30522888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47764080).

30522888 is an abundant number, since it is smaller than the sum of its proper divisors (65005272).

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

30522888 is a wasteful number, since it uses less digits than its factorization.

30522888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307 (or 2300 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 30522888 is about 5524.7523021399. The cubic root of 30522888 is about 312.5181233223.

The spelling of 30522888 in words is "thirty million, five hundred twenty-two thousand, eight hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 11 12 17 18 22 24 33 34 36 44 51 66 68 72 88 99 102 132 136 153 187 198 204 264 306 374 396 408 561 612 748 792 1122 1224 1496 1683 2244 2267 3366 4488 4534 6732 6801 9068 13464 13602 18136 20403 24937 27204 38539 40806 49874 54408 74811 77078 81612 99748 115617 149622 154156 163224 199496 224433 231234 299244 308312 346851 423929 448866 462468 598488 693702 847858 897732 924936 1271787 1387404 1695716 1795464 2543574 2774808 3391432 3815361 5087148 7630722 10174296 15261444 30522888