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30520224456645 = 3572113774919537
BaseRepresentation
bin1101111000010000010110…
…01000110001111111000101
311000001201000220210022121110
412330020023020301333011
513000020404430103040
6144524444134435233
76300004420330200
oct674101310617705
9130051026708543
1030520224456645
1197a7611055130
12350b035502b19
131405077602a21
14777288602937
1537dd7b213980
hex1bc20b231fc5

30520224456645 has 48 divisors (see below), whose sum is σ = 61969079135808. Its totient is φ = 12683729640960.

The previous prime is 30520224456599. The next prime is 30520224456671. The reversal of 30520224456645 is 54665442202503.

It is not a de Polignac number, because 30520224456645 - 221 = 30520222359493 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30520224456594 and 30520224456603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1887451684 + ... + 1887467853.

It is an arithmetic number, because the mean of its divisors is an integer number (1291022481996).

Almost surely, 230520224456645 is an apocalyptic number.

30520224456645 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30520224456645 is an abundant number, since it is smaller than the sum of its proper divisors (31448854679163).

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

30520224456645 is a wasteful number, since it uses less digits than its factorization.

30520224456645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3774919570 (or 3774919563 counting only the distinct ones).

The product of its (nonzero) digits is 6912000, while the sum is 48.

The spelling of 30520224456645 in words is "thirty trillion, five hundred twenty billion, two hundred twenty-four million, four hundred fifty-six thousand, six hundred forty-five".

Divisors: 1 3 5 7 11 15 21 33 35 49 55 77 105 147 165 231 245 385 539 735 1155 1617 2695 8085 3774919537 11324758611 18874597685 26424436759 41524114907 56623793055 79273310277 124572344721 132122183795 184971057313 207620574535 290668804349 396366551385 554913171939 622861723605 872006413047 924855286565 1453344021745 2034681630443 2774565859695 4360032065235 6104044891329 10173408152215 30520224456645