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91340303490 = 23251014892261
BaseRepresentation
bin101010100010001001…
…1100110110010000010
322201202122220011212100
41111010103212302002
52444031104202430
6105543335411230
76412332524622
oct1250423466202
9281678804770
1091340303490
1135812246a27
1215851823b16
1387c86cbc77
1445c6d10882
152598d7d960
hex15444e6c82

91340303490 has 24 divisors (see below), whose sum is σ = 237484789308. Its totient is φ = 24357414240.

The previous prime is 91340303471. The next prime is 91340303539. The reversal of 91340303490 is 9430304319.

91340303490 is a `hidden beast` number, since 9 + 1 + 340 + 303 + 4 + 9 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 84518699841 + 6821603649 = 290721^2 + 82593^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 507446041 + ... + 507446220.

Almost surely, 291340303490 is an apocalyptic number.

91340303490 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

91340303490 is an abundant number, since it is smaller than the sum of its proper divisors (146144485818).

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

91340303490 is a wasteful number, since it uses less digits than its factorization.

91340303490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014892274 (or 1014892271 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The spelling of 91340303490 in words is "ninety-one billion, three hundred forty million, three hundred three thousand, four hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 1014892261 2029784522 3044676783 5074461305 6089353566 9134030349 10148922610 15223383915 18268060698 30446767830 45670151745 91340303490