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91348131967 = 311677433861
BaseRepresentation
bin101010100010011000…
…1011110000001111111
322201210012121220111221
41111010301132001333
52444040110210332
6105544215254211
76412456211311
oct1250461360177
9281705556457
1091348131967
1135816703644
121585437a367
1387ca2102c1
1445c7d8b7b1
1525998c8297
hex1544c5e07f

91348131967 has 8 divisors (see below), whose sum is σ = 91777432032. Its totient is φ = 90919701600.

The previous prime is 91348131877. The next prime is 91348132003. The reversal of 91348131967 is 76913184319.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-91348131967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91348134967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6384 + ... + 427477.

It is an arithmetic number, because the mean of its divisors is an integer number (11472179004).

Almost surely, 291348131967 is an apocalyptic number.

91348131967 is a deficient number, since it is larger than the sum of its proper divisors (429300065).

91348131967 is a wasteful number, since it uses less digits than its factorization.

91348131967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434849.

The product of its digits is 979776, while the sum is 52.

The spelling of 91348131967 in words is "ninety-one billion, three hundred forty-eight million, one hundred thirty-one thousand, nine hundred sixty-seven".

Divisors: 1 311 677 210547 433861 134930771 293723897 91348131967