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933660138 = 23155610023
BaseRepresentation
bin110111101001101…
…000010111101010
32102001211211221010
4313221220113222
53403004111023
6232351324350
732064660135
oct6751502752
92361754833
10933660138
1143a032754
122208206b6
1311b580628
148bddd21c
1556e7a093
hex37a685ea

933660138 has 8 divisors (see below), whose sum is σ = 1867320288. Its totient is φ = 311220044.

The previous prime is 933660113. The next prime is 933660149. The reversal of 933660138 is 831066339.

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

933660138 is an admirable number.

It is a super-3 number, since 3×9336601383 (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 933660096 and 933660105.

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 3 ways as a sum of consecutive naturals, for example, 77805006 + ... + 77805017.

It is an arithmetic number, because the mean of its divisors is an integer number (233415036).

Almost surely, 2933660138 is an apocalyptic number.

933660138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

933660138 is a wasteful number, since it uses less digits than its factorization.

933660138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155610028.

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 933660138 is about 30555.8527617869. The cubic root of 933660138 is about 977.3788550011.

The spelling of 933660138 in words is "nine hundred thirty-three million, six hundred sixty thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 155610023 311220046 466830069 933660138