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30211023331020 = 2235775479531073
BaseRepresentation
bin1101101111010000011010…
…10100000101111011001100
310221222010221011022200100210
412313220031110011323030
512424434133433043040
6144130430313322420
76235450215200430
oct667501524057314
9127863834280323
1030211023331020
119698472085a84
12347b122706410
1313b1b6c4643ac
147663154929c0
15375cd0d9a480
hex1b7a0d505ecc

30211023331020 has 96 divisors (see below), whose sum is σ = 96688094565888. Its totient is φ = 6904461053952.

The previous prime is 30211023330931. The next prime is 30211023331037. The reversal of 30211023331020 is 2013332011203.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1595797 + ... + 7935276.

It is an arithmetic number, because the mean of its divisors is an integer number (1007167651728).

Almost surely, 230211023331020 is an apocalyptic number.

30211023331020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30211023331020 is an abundant number, since it is smaller than the sum of its proper divisors (66477071234868).

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

30211023331020 is a wasteful number, since it uses less digits than its factorization.

30211023331020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9538639 (or 9538637 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 30211023331020 its reverse (2013332011203), we get a palindrome (32224355342223).

The spelling of 30211023331020 in words is "thirty trillion, two hundred eleven billion, twenty-three million, three hundred thirty-one thousand, twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 7547 15094 22641 30188 37735 45282 52829 75470 90564 105658 113205 150940 158487 211316 226410 264145 316974 452820 528290 633948 792435 1056580 1584870 3169740 9531073 19062146 28593219 38124292 47655365 57186438 66717511 95310730 114372876 133435022 142966095 190621460 200152533 266870044 285932190 333587555 400305066 571864380 667175110 800610132 1000762665 1334350220 2001525330 4003050660 71931007931 143862015862 215793023793 287724031724 359655039655 431586047586 503517055517 719310079310 863172095172 1007034111034 1078965118965 1438620158620 1510551166551 2014068222068 2157930237930 2517585277585 3021102333102 4315860475860 5035170555170 6042204666204 7552755832755 10070341110340 15105511665510 30211023331020