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72872199 = 3271114041
BaseRepresentation
bin1000101011111…
…11000100000111
312002010021212100
410111333010013
5122123402244
611121523143
71543255251
oct425770407
9162107770
1072872199
1138152a64
12204a34b3
1312135c5a
14996ccd1
1565e6b69
hex457f107

72872199 has 12 divisors (see below), whose sum is σ = 106743312. Its totient is φ = 47896800.

The previous prime is 72872197. The next prime is 72872209. The reversal of 72872199 is 99127827.

It is not a de Polignac number, because 72872199 - 21 = 72872197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72872197) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56382 + ... + 57659.

It is an arithmetic number, because the mean of its divisors is an integer number (8895276).

Almost surely, 272872199 is an apocalyptic number.

72872199 is a deficient number, since it is larger than the sum of its proper divisors (33871113).

72872199 is a wasteful number, since it uses less digits than its factorization.

72872199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114118 (or 114115 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The square root of 72872199 is about 8536.5214812592. The cubic root of 72872199 is about 417.6898850588.

It can be divided in two parts, 728 and 72199, that added together give a palindrome (72927).

The spelling of 72872199 in words is "seventy-two million, eight hundred seventy-two thousand, one hundred ninety-nine".

Divisors: 1 3 9 71 213 639 114041 342123 1026369 8096911 24290733 72872199