Search a number
-
+
312212254170 = 23510407075139
BaseRepresentation
bin1001000101100010100…
…11001110110111011010
31002211212121102211002010
410202301103032313122
520103402314113140
6355232304050350
731361624242035
oct4426123166732
91084777384063
10312212254170
11110454750643
12506133039b6
1323597c4b2cb
141117b01201c
1581c48a9880
hex48b14cedda

312212254170 has 16 divisors (see below), whose sum is σ = 749309410080. Its totient is φ = 83256601104.

The previous prime is 312212254153. The next prime is 312212254177. The reversal of 312212254170 is 71452212213.

312212254170 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 10407075139 = 312212254170 / (3 + 1 + 2 + 2 + 1 + 2 + 2 + 5 + 4 + 1 + 7 + 0).

It is not an unprimeable number, because it can be changed into a prime (312212254177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5203537540 + ... + 5203537599.

It is an arithmetic number, because the mean of its divisors is an integer number (46831838130).

Almost surely, 2312212254170 is an apocalyptic number.

312212254170 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

312212254170 is an abundant number, since it is smaller than the sum of its proper divisors (437097155910).

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

312212254170 is a wasteful number, since it uses less digits than its factorization.

312212254170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10407075149.

The product of its (nonzero) digits is 6720, while the sum is 30.

Adding to 312212254170 its reverse (71452212213), we get a palindrome (383664466383).

The spelling of 312212254170 in words is "three hundred twelve billion, two hundred twelve million, two hundred fifty-four thousand, one hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 10407075139 20814150278 31221225417 52035375695 62442450834 104070751390 156106127085 312212254170