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91488036861412 = 2254563419185331
BaseRepresentation
bin10100110011010100110111…
…111100000011010111100100
3102222221011121120222000011221
4110303110313330003113210
543442414444414031122
6522325005055510124
725161535561223302
oct2463246774032744
9388834546860157
1091488036861412
11271729497a1454
12a316bb2528344
133c08391aa75b9
14188408a5a9272
15a89c318376c7
hex533537f035e4

91488036861412 has 12 divisors (see below), whose sum is σ = 160106999186736. Its totient is φ = 45743179950920.

The previous prime is 91488036861401. The next prime is 91488036861413. The reversal of 91488036861412 is 21416863088419.

It is not an unprimeable number, because it can be changed into a prime (91488036861413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209374414 + ... + 209810917.

It is an arithmetic number, because the mean of its divisors is an integer number (13342249932228).

Almost surely, 291488036861412 is an apocalyptic number.

It is an amenable number.

91488036861412 is a deficient number, since it is larger than the sum of its proper divisors (68618962325324).

91488036861412 is a wasteful number, since it uses less digits than its factorization.

91488036861412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419239898 (or 419239896 counting only the distinct ones).

The product of its (nonzero) digits is 15925248, while the sum is 61.

The spelling of 91488036861412 in words is "ninety-one trillion, four hundred eighty-eight billion, thirty-six million, eight hundred sixty-one thousand, four hundred twelve".

Divisors: 1 2 4 54563 109126 218252 419185331 838370662 1676741324 22872009215353 45744018430706 91488036861412