Search a number
-
+
78900130412 = 22792231119659
BaseRepresentation
bin100100101111011010…
…0000111001001101100
321112122200111220120022
41021132310013021230
52243041413133122
6100125103341312
75462135020505
oct1113664071154
9245580456508
1078900130412
1130509080854
121335b5b1838
1375952cb5cc
143b66a71bac
1520bbb61642
hex125ed0726c

78900130412 has 24 divisors (see below), whose sum is σ = 140450150400. Its totient is φ = 38775995856.

The previous prime is 78900130339. The next prime is 78900130433. The reversal of 78900130412 is 21403100987.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 489362 + ... + 630297.

It is an arithmetic number, because the mean of its divisors is an integer number (5852089600).

Almost surely, 278900130412 is an apocalyptic number.

It is an amenable number.

78900130412 is a deficient number, since it is larger than the sum of its proper divisors (61550019988).

78900130412 is a wasteful number, since it uses less digits than its factorization.

78900130412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119965 (or 1119963 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The spelling of 78900130412 in words is "seventy-eight billion, nine hundred million, one hundred thirty thousand, four hundred twelve".

Divisors: 1 2 4 79 158 223 316 446 892 17617 35234 70468 1119659 2239318 4478636 88453061 176906122 249683957 353812244 499367914 998735828 19725032603 39450065206 78900130412