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33000131040 = 253568750273
BaseRepresentation
bin11110101110111101…
…100000100111100000
310011011211120100110120
4132232331200213200
51020041013143130
623054323200240
72245526325402
oct365675404740
9104154510416
1033000131040
1112aa4793978
12648b816080
13315bac4176
141850a86b72
15cd21e6910
hex7aef609e0

33000131040 has 48 divisors (see below), whose sum is σ = 103950414288. Its totient is φ = 8800034816.

The previous prime is 33000131039. The next prime is 33000131063. The reversal of 33000131040 is 4013100033.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 34374657 + ... + 34375616.

It is an arithmetic number, because the mean of its divisors is an integer number (2165633631).

Almost surely, 233000131040 is an apocalyptic number.

33000131040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33000131040 is an abundant number, since it is smaller than the sum of its proper divisors (70950283248).

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

33000131040 is a wasteful number, since it uses less digits than its factorization.

33000131040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68750291 (or 68750283 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 33000131040 its reverse (4013100033), we get a palindrome (37013231073).

The spelling of 33000131040 in words is "thirty-three billion, one hundred thirty-one thousand, forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 160 240 480 68750273 137500546 206250819 275001092 343751365 412501638 550002184 687502730 825003276 1031254095 1100004368 1375005460 1650006552 2062508190 2200008736 2750010920 3300013104 4125016380 5500021840 6600026208 8250032760 11000043680 16500065520 33000131040