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75130091392 = 278319873559
BaseRepresentation
bin100010111111000011…
…0100011011110000000
321011220221112002021111
41011332012203132000
52212331300411032
654303030333104
75266536145216
oct1057606433600
9234827462244
1075130091392
1129953a83724
1212688aba194
1371142244a5
1438ca09ccb6
151e4abb2c47
hex117e1a3780

75130091392 has 64 divisors (see below), whose sum is σ = 151595337600. Its totient is φ = 37083354624.

The previous prime is 75130091381. The next prime is 75130091411. The reversal of 75130091392 is 29319003157.

It is a tau number, because it is divible by the number of its divisors (64).

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 7 ways as a sum of consecutive naturals, for example, 21108109 + ... + 21111667.

It is an arithmetic number, because the mean of its divisors is an integer number (2368677150).

Almost surely, 275130091392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75130091392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75797668800).

75130091392 is an abundant number, since it is smaller than the sum of its proper divisors (76465246208).

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

75130091392 is a wasteful number, since it uses less digits than its factorization.

75130091392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5643 (or 5631 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 40.

The spelling of 75130091392 in words is "seventy-five billion, one hundred thirty million, ninety-one thousand, three hundred ninety-two".

Divisors: 1 2 4 8 16 32 64 83 128 166 332 664 1328 1987 2656 3559 3974 5312 7118 7948 10624 14236 15896 28472 31792 56944 63584 113888 127168 164921 227776 254336 295397 329842 455552 590794 659684 1181588 1319368 2363176 2638736 4726352 5277472 7071733 9452704 10554944 14143466 18905408 21109888 28286932 37810816 56573864 113147728 226295456 452590912 586953839 905181824 1173907678 2347815356 4695630712 9391261424 18782522848 37565045696 75130091392