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72948042 = 23223247163
BaseRepresentation
bin1000101100100…
…01100101001010
312002021010220100
410112101211022
5122133314132
611123310230
71544022336
oct426214512
9162233810
1072948042
11381a4a42
122051b376
131216162b
14998c7c6
15660e37c
hex459194a

72948042 has 72 divisors (see below), whose sum is σ = 169775424. Its totient is φ = 22624272.

The previous prime is 72948041. The next prime is 72948067. The reversal of 72948042 is 24084927.

It is a junction number, because it is equal to n+sod(n) for n = 72947988 and 72948006.

It is not an unprimeable number, because it can be changed into a prime (72948041) 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 35 ways as a sum of consecutive naturals, for example, 447453 + ... + 447615.

It is an arithmetic number, because the mean of its divisors is an integer number (2357992).

Almost surely, 272948042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72948042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84887712).

72948042 is an abundant number, since it is smaller than the sum of its proper divisors (96827382).

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

72948042 is a wasteful number, since it uses less digits than its factorization.

72948042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264 (or 238 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 72948042 is about 8540.9625921204. The cubic root of 72948042 is about 417.8347408046.

The spelling of 72948042 in words is "seventy-two million, nine hundred forty-eight thousand, forty-two".

Divisors: 1 2 3 6 9 18 23 46 47 69 94 138 141 163 207 282 326 414 423 489 529 846 978 1058 1081 1467 1587 2162 2934 3174 3243 3749 4761 6486 7498 7661 9522 9729 11247 15322 19458 22494 22983 24863 33741 45966 49726 67482 68949 74589 86227 137898 149178 172454 176203 223767 258681 352406 447534 517362 528609 776043 1057218 1552086 1585827 3171654 4052669 8105338 12158007 24316014 36474021 72948042