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30220212232 = 2377114715167
BaseRepresentation
bin11100001001010000…
…111101100000001000
32220000002122211202201
4130021100331200020
5443342333242412
621514420005544
72116612365010
oct341120754010
986002584681
1030220212232
11118a8581811
125a348308b4
132b07ba82b2
1416697acc40
15bbd126e57
hex70943d808

30220212232 has 64 divisors (see below), whose sum is σ = 65727037440. Its totient is φ = 12757953600.

The previous prime is 30220212223. The next prime is 30220212251. The reversal of 30220212232 is 23221202203.

It is a super-2 number, since 2×302202122322 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5846113 + ... + 5851279.

It is an arithmetic number, because the mean of its divisors is an integer number (1026984960).

Almost surely, 230220212232 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 30220212232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32863518720).

30220212232 is an abundant number, since it is smaller than the sum of its proper divisors (35506825208).

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

30220212232 is a wasteful number, since it uses less digits than its factorization.

30220212232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6722 (or 6718 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 30220212232 its reverse (23221202203), we get a palindrome (53441414435).

The spelling of 30220212232 in words is "thirty billion, two hundred twenty million, two hundred twelve thousand, two hundred thirty-two".

Divisors: 1 2 4 7 8 14 28 56 71 142 284 497 568 994 1471 1988 2942 3976 5167 5884 10297 10334 11768 20594 20668 36169 41188 41336 72338 82376 104441 144676 208882 289352 366857 417764 731087 733714 835528 1462174 1467428 2567999 2924348 2934856 5135998 5848696 7600657 10271996 15201314 20543992 30402628 53204599 60805256 106409198 212818396 425636792 539646647 1079293294 2158586588 3777526529 4317173176 7555053058 15110106116 30220212232