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152255137220 = 2257612756861
BaseRepresentation
bin1000110111001100011…
…1010000010111000100
3112112222220220100120022
42031303013100113010
54443304303342340
6153540043554312
714000011212224
oct2156307202704
9475886810508
10152255137220
115963106811a
1225611b2b998
1311485847594
1475250a2084
153e61a8d3b5
hex23731d05c4

152255137220 has 12 divisors (see below), whose sum is σ = 319735788204. Its totient is φ = 60902054880.

The previous prime is 152255137219. The next prime is 152255137241. The reversal of 152255137220 is 22731552251.

It can be written as a sum of positive squares in 2 ways, for example, as 57086589184 + 95168548036 = 238928^2 + 308494^2 .

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, 3806378411 + ... + 3806378450.

It is an arithmetic number, because the mean of its divisors is an integer number (26644649017).

Almost surely, 2152255137220 is an apocalyptic number.

152255137220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152255137220 is an abundant number, since it is smaller than the sum of its proper divisors (167480650984).

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

152255137220 is a wasteful number, since it uses less digits than its factorization.

152255137220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7612756870 (or 7612756868 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 35.

Adding to 152255137220 its reverse (22731552251), we get a palindrome (174986689471).

The spelling of 152255137220 in words is "one hundred fifty-two billion, two hundred fifty-five million, one hundred thirty-seven thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 7612756861 15225513722 30451027444 38063784305 76127568610 152255137220