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33238804137 = 3711718720021
BaseRepresentation
bin11110111101001011…
…111110011010101001
310011210110200012101220
4132331023332122221
51021033113213022
623134130532253
72254455113340
oct367513763251
9104713605356
1033238804137
1113107490570
126537737089
13319939c056
141874654b57
15ce813e85c
hex7bd2fe6a9

33238804137 has 32 divisors (see below), whose sum is σ = 55264564224. Its totient is φ = 17263646400.

The previous prime is 33238804129. The next prime is 33238804241. The reversal of 33238804137 is 73140883233.

It is not a de Polignac number, because 33238804137 - 23 = 33238804129 is a prime.

It is a super-2 number, since 2×332388041372 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33238804337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1650187 + ... + 1670207.

It is an arithmetic number, because the mean of its divisors is an integer number (1727017632).

Almost surely, 233238804137 is an apocalyptic number.

It is an amenable number.

33238804137 is a deficient number, since it is larger than the sum of its proper divisors (22025760087).

33238804137 is a wasteful number, since it uses less digits than its factorization.

33238804137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27229.

The product of its (nonzero) digits is 290304, while the sum is 42.

The spelling of 33238804137 in words is "thirty-three billion, two hundred thirty-eight million, eight hundred four thousand, one hundred thirty-seven".

Divisors: 1 3 7 11 21 33 77 231 7187 20021 21561 50309 60063 79057 140147 150927 220231 237171 420441 553399 660693 1541617 1660197 4624851 143890927 431672781 1007236489 1582800197 3021709467 4748400591 11079601379 33238804137