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30031310088 = 23331365916229
BaseRepresentation
bin11011111110000000…
…010110110100001000
32212111221012121202000
4123332000112310020
5443001003410323
621443551111000
72112126631623
oct337600266410
985457177660
1030031310088
111181098983a
1259a1512460
132aa7a08490
14164c678dba
15bab760e43
hex6fe016d08

30031310088 has 128 divisors (see below), whose sum is σ = 89979120000. Its totient is φ = 9225812736.

The previous prime is 30031310087. The next prime is 30031310117. The reversal of 30031310088 is 88001313003.

It is a super-2 number, since 2×300313100882 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (30031310081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1842358 + ... + 1858586.

It is an arithmetic number, because the mean of its divisors is an integer number (702961875).

Almost surely, 230031310088 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 30031310088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44989560000).

30031310088 is an abundant number, since it is smaller than the sum of its proper divisors (59947809912).

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

30031310088 is a wasteful number, since it uses less digits than its factorization.

30031310088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16916 (or 16906 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The spelling of 30031310088 in words is "thirty billion, thirty-one million, three hundred ten thousand, eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 13 18 24 26 27 36 39 52 54 72 78 104 108 117 156 216 234 312 351 468 659 702 936 1318 1404 1977 2636 2808 3954 5272 5931 7908 8567 11862 15816 16229 17134 17793 23724 25701 32458 34268 35586 47448 48687 51402 64916 68536 71172 77103 97374 102804 129832 142344 146061 154206 194748 205608 210977 231309 292122 308412 389496 421954 438183 462618 584244 616824 632931 843908 876366 925236 1168488 1265862 1687816 1752732 1850472 1898793 2531724 3505464 3797586 5063448 5696379 7595172 10694911 11392758 15190344 21389822 22785516 32084733 42779644 45571032 64169466 85559288 96254199 128338932 139033843 192508398 256677864 278067686 288762597 385016796 417101529 556135372 577525194 770033592 834203058 1112270744 1155050388 1251304587 1668406116 2310100776 2502609174 3336812232 3753913761 5005218348 7507827522 10010436696 15015655044 30031310088