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30034021040 = 2451723992401
BaseRepresentation
bin11011111110001010…
…101100101010110000
32212112010022100110122
4123332022230222300
5443002202133130
621444125145412
72112161652362
oct337612545260
985463270418
1030034021040
11118124705a1
1259a23bb268
132aa84473aa
14164cb82d32
15babae92e5
hex6fe2acab0

30034021040 has 80 divisors (see below), whose sum is σ = 74246855040. Its totient is φ = 11259494400.

The previous prime is 30034021019. The next prime is 30034021067. The reversal of 30034021040 is 4012043003.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 278840 + ... + 371240.

It is an arithmetic number, because the mean of its divisors is an integer number (928085688).

Almost surely, 230034021040 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 30034021040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37123427520).

30034021040 is an abundant number, since it is smaller than the sum of its proper divisors (44212834000).

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

30034021040 is a wasteful number, since it uses less digits than its factorization.

30034021040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92670 (or 92664 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 30034021040 its reverse (4012043003), we get a palindrome (34046064043).

The spelling of 30034021040 in words is "thirty billion, thirty-four million, twenty-one thousand, forty".

Divisors: 1 2 4 5 8 10 16 17 20 34 40 68 80 85 136 170 239 272 340 478 680 956 1195 1360 1912 2390 3824 4063 4780 8126 9560 16252 19120 20315 32504 40630 65008 81260 92401 162520 184802 325040 369604 462005 739208 924010 1478416 1570817 1848020 3141634 3696040 6283268 7392080 7854085 12566536 15708170 22083839 25133072 31416340 44167678 62832680 88335356 110419195 125665360 176670712 220838390 353341424 375425263 441676780 750850526 883353560 1501701052 1766707120 1877126315 3003402104 3754252630 6006804208 7508505260 15017010520 30034021040