Search a number
-
+
157386664806 = 23719505139047
BaseRepresentation
bin1001001010010011111…
…0011110101101100110
3120001020112202222001120
42102210332132231212
510034311441233211
6200145154234410
714241121402110
oct2224476365546
9501215688046
10157386664806
116082473a808
1226604585a06
1311ac2a08037
1478908003b0
154162325d06
hex24a4f9eb66

157386664806 has 64 divisors (see below), whose sum is σ = 378759352320. Its totient is φ = 42591376800.

The previous prime is 157386664801. The next prime is 157386664807. The reversal of 157386664806 is 608466683751.

It is a self number, because there is not a number n which added to its sum of digits gives 157386664806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157386664801) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4011175 + ... + 4050221.

It is an arithmetic number, because the mean of its divisors is an integer number (5918114880).

Almost surely, 2157386664806 is an apocalyptic number.

157386664806 is an abundant number, since it is smaller than the sum of its proper divisors (221372687514).

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

157386664806 is a wasteful number, since it uses less digits than its factorization.

157386664806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44129.

The product of its (nonzero) digits is 34836480, while the sum is 60.

The spelling of 157386664806 in words is "one hundred fifty-seven billion, three hundred eighty-six million, six hundred sixty-four thousand, eight hundred six".

Divisors: 1 2 3 6 7 14 19 21 38 42 57 114 133 266 399 798 5051 10102 15153 30306 35357 39047 70714 78094 95969 106071 117141 191938 212142 234282 273329 287907 546658 575814 671783 741893 819987 1343566 1483786 1639974 2015349 2225679 4030698 4451358 5193251 10386502 15579753 31159506 197226397 394452794 591679191 1183358382 1380584779 2761169558 3747301543 4141754337 7494603086 8283508674 11241904629 22483809258 26231110801 52462221602 78693332403 157386664806