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152531021213 = 2331213928501
BaseRepresentation
bin1000111000001110001…
…1101010110110011101
3112120201011000201020222
42032003203222312131
54444340420134323
6154023301051125
714006601200564
oct2160343526635
9476634021228
10152531021213
115976286a91a
122568a3b6aa5
13114caa5064c
14754d998bdb
153e7add69c8
hex23838ead9d

152531021213 has 8 divisors (see below), whose sum is σ = 164297089536. Its totient is φ = 141192810000.

The previous prime is 152531021207. The next prime is 152531021233. The reversal of 152531021213 is 312120135251.

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

It is a cyclic number.

It is not a de Polignac number, because 152531021213 - 24 = 152531021197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152531021233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106963538 + ... + 106964963.

It is an arithmetic number, because the mean of its divisors is an integer number (20537136192).

Almost surely, 2152531021213 is an apocalyptic number.

It is an amenable number.

152531021213 is a deficient number, since it is larger than the sum of its proper divisors (11766068323).

152531021213 is a wasteful number, since it uses less digits than its factorization.

152531021213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213928555.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 152531021213 its reverse (312120135251), we get a palindrome (464651156464).

The spelling of 152531021213 in words is "one hundred fifty-two billion, five hundred thirty-one million, twenty-one thousand, two hundred thirteen".

Divisors: 1 23 31 713 213928501 4920355523 6631783531 152531021213