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50152172 = 22719313041
BaseRepresentation
bin1011111101010…
…0001011101100
310111100222211212
42333110023230
5100314332142
64550533552
71146200150
oct277241354
9114328755
1050152172
1126345084
12149672b8
13a50c755
146937060
154609d82
hex2fd42ec

50152172 has 48 divisors (see below), whose sum is σ = 109025280. Its totient is φ = 19699200.

The previous prime is 50152139. The next prime is 50152177. The reversal of 50152172 is 27125105.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (50152177) 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, 14972 + ... + 18012.

It is an arithmetic number, because the mean of its divisors is an integer number (2271360).

Almost surely, 250152172 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50152172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54512640).

50152172 is an abundant number, since it is smaller than the sum of its proper divisors (58873108).

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

50152172 is a wasteful number, since it uses less digits than its factorization.

50152172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3102 (or 3100 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 50152172 is about 7081.8198226162. The cubic root of 50152172 is about 368.7765089819.

Adding to 50152172 its reverse (27125105), we get a palindrome (77277277).

The spelling of 50152172 in words is "fifty million, one hundred fifty-two thousand, one hundred seventy-two".

Divisors: 1 2 4 7 14 19 28 31 38 62 76 124 133 217 266 434 532 589 868 1178 2356 3041 4123 6082 8246 12164 16492 21287 42574 57779 85148 94271 115558 188542 231116 377084 404453 659897 808906 1319794 1617812 1791149 2639588 3582298 7164596 12538043 25076086 50152172