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90704209744 = 2419298369111
BaseRepresentation
bin101010001111001100…
…1000110011101010000
322200010022222021021201
41110132121012131100
52441230234202434
6105400254000544
76360510030121
oct1243631063520
9280108867251
1090704209744
1135516186315
12156b47a6154
1387269a6835
144566650048
15255d0d1614
hex151e646750

90704209744 has 20 divisors (see below), whose sum is σ = 184988849440. Its totient is φ = 42965151840.

The previous prime is 90704209721. The next prime is 90704209769. The reversal of 90704209744 is 44790240709.

It is a junction number, because it is equal to n+sod(n) for n = 90704209694 and 90704209703.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149184252 + ... + 149184859.

It is an arithmetic number, because the mean of its divisors is an integer number (9249442472).

Almost surely, 290704209744 is an apocalyptic number.

It is an amenable number.

90704209744 is an abundant number, since it is smaller than the sum of its proper divisors (94284639696).

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

90704209744 is a wasteful number, since it uses less digits than its factorization.

90704209744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298369138 (or 298369132 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 90704209744 in words is "ninety billion, seven hundred four million, two hundred nine thousand, seven hundred forty-four".

Divisors: 1 2 4 8 16 19 38 76 152 304 298369111 596738222 1193476444 2386952888 4773905776 5669013109 11338026218 22676052436 45352104872 90704209744