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72650058 = 2313271647
BaseRepresentation
bin1000101010010…
…00110101001010
312001201000010220
410111020311022
5122044300213
611113050510
71541341515
oct425106512
9161630126
1072650058
1138011078
12203b6a36
1312088b00
149911d7c
1565a0e23
hex4548d4a

72650058 has 24 divisors (see below), whose sum is σ = 157339008. Its totient is φ = 22353552.

The previous prime is 72650057. The next prime is 72650069. The reversal of 72650058 is 85005627.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (72650051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34810 + ... + 36837.

It is an arithmetic number, because the mean of its divisors is an integer number (6555792).

Almost surely, 272650058 is an apocalyptic number.

72650058 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

72650058 is an abundant number, since it is smaller than the sum of its proper divisors (84688950).

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

72650058 is a wasteful number, since it uses less digits than its factorization.

72650058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71678 (or 71665 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 72650058 is about 8523.5003373027. The cubic root of 72650058 is about 417.2650294352.

The spelling of 72650058 in words is "seventy-two million, six hundred fifty thousand, fifty-eight".

Divisors: 1 2 3 6 13 26 39 78 169 338 507 1014 71647 143294 214941 429882 931411 1862822 2794233 5588466 12108343 24216686 36325029 72650058