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30212051488 = 252368360101
BaseRepresentation
bin11100001000110001…
…110101001000100000
32212222112022020022221
4130020301311020200
5443333241121423
621513525040424
72116453125523
oct341061651040
985875266287
1030212051488
11118a3a084a3
125a31b56114
132b062ab958
141668686bba
15bbc563e5d
hex708c75220

30212051488 has 48 divisors (see below), whose sum is σ = 62157969216. Its totient is φ = 14427846400.

The previous prime is 30212051479. The next prime is 30212051497. The reversal of 30212051488 is 88415021203.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30212051479) and next prime (30212051497).

It is a super-2 number, since 2×302120514882 (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 7 ways as a sum of consecutive naturals, for example, 472638 + ... + 532738.

It is an arithmetic number, because the mean of its divisors is an integer number (1294957692).

Almost surely, 230212051488 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 30212051488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31078984608).

30212051488 is an abundant number, since it is smaller than the sum of its proper divisors (31945917728).

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

30212051488 is a wasteful number, since it uses less digits than its factorization.

30212051488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60817 (or 60809 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The spelling of 30212051488 in words is "thirty billion, two hundred twelve million, fifty-one thousand, four hundred eighty-eight".

Divisors: 1 2 4 8 16 23 32 46 92 184 368 683 736 1366 2732 5464 10928 15709 21856 31418 60101 62836 120202 125672 240404 251344 480808 502688 961616 1382323 1923232 2764646 5529292 11058584 22117168 41048983 44234336 82097966 164195932 328391864 656783728 944126609 1313567456 1888253218 3776506436 7553012872 15106025744 30212051488