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152218122 = 23731116911
BaseRepresentation
bin10010001001010…
…10101000001010
3101121102111000020
421010222220022
5302431434442
623034321310
73525555420
oct1104525012
9347374006
10152218122
1178a17801
1242b89236
13256c76c4
1416305110
15d56b9ec
hex912aa0a

152218122 has 32 divisors (see below), whose sum is σ = 359153664. Its totient is φ = 42087600.

The previous prime is 152218061. The next prime is 152218127. The reversal of 152218122 is 221812251.

It is a junction number, because it is equal to n+sod(n) for n = 152218092 and 152218101.

It is not an unprimeable number, because it can be changed into a prime (152218127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57154 + ... + 59757.

It is an arithmetic number, because the mean of its divisors is an integer number (11223552).

Almost surely, 2152218122 is an apocalyptic number.

152218122 is an abundant number, since it is smaller than the sum of its proper divisors (206935542).

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

152218122 is a wasteful number, since it uses less digits than its factorization.

152218122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116954.

The product of its digits is 640, while the sum is 24.

The square root of 152218122 is about 12337.6708498809. The cubic root of 152218122 is about 533.9354871636.

The spelling of 152218122 in words is "one hundred fifty-two million, two hundred eighteen thousand, one hundred twenty-two".

Divisors: 1 2 3 6 7 14 21 31 42 62 93 186 217 434 651 1302 116911 233822 350733 701466 818377 1636754 2455131 3624241 4910262 7248482 10872723 21745446 25369687 50739374 76109061 152218122