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82040024 = 231119139353
BaseRepresentation
bin1001110001111…
…01010011011000
312201101001202102
410320331103120
5132000240044
612050222532
72014220513
oct470752330
9181331672
1082040024
1142344980
1223584a48
1313cc5ac1
14ac77d7a
15730824e
hex4e3d4d8

82040024 has 64 divisors (see below), whose sum is σ = 178416000. Its totient is φ = 34974720.

The previous prime is 82040017. The next prime is 82040029. The reversal of 82040024 is 42004028.

It is a junction number, because it is equal to n+sod(n) for n = 82039978 and 82040005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82040029) 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, 232232 + ... + 232584.

It is an arithmetic number, because the mean of its divisors is an integer number (2787750).

Almost surely, 282040024 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 82040024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89208000).

82040024 is an abundant number, since it is smaller than the sum of its proper divisors (96375976).

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

82040024 is a wasteful number, since it uses less digits than its factorization.

82040024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528 (or 524 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 82040024 is about 9057.5948242345. The cubic root of 82040024 is about 434.5188214403.

The spelling of 82040024 in words is "eighty-two million, forty thousand, twenty-four".

Divisors: 1 2 4 8 11 19 22 38 44 76 88 139 152 209 278 353 418 556 706 836 1112 1412 1529 1672 2641 2824 3058 3883 5282 6116 6707 7766 10564 12232 13414 15532 21128 26828 29051 31064 49067 53656 58102 73777 98134 116204 147554 196268 232408 295108 392536 539737 590216 932273 1079474 1864546 2158948 3729092 4317896 7458184 10255003 20510006 41020012 82040024