Search a number
-
+
310740948 = 22347223237
BaseRepresentation
bin10010100001011…
…000011111010100
3210122201021110000
4102201120133110
51114022202243
650500131300
710462153200
oct2241303724
9718637400
10310740948
1114a450301
1288096b30
134c4bb9ab
142d3abb00
151c4315d3
hex128587d4

310740948 has 270 divisors, whose sum is σ = 1014534906. Its totient is φ = 82627776.

The previous prime is 310740917. The next prime is 310740949. The reversal of 310740948 is 849047013.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 302342544 + 8398404 = 17388^2 + 2898^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (310740949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 8398386 + ... + 8398422.

Almost surely, 2310740948 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 310740948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (507267453).

310740948 is an abundant number, since it is smaller than the sum of its proper divisors (703793958).

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

310740948 is a wasteful number, since it uses less digits than its factorization.

310740948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113 (or 72 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 310740948 is about 17627.8458128042. The cubic root of 310740948 is about 677.3287271018.

The spelling of 310740948 in words is "three hundred ten million, seven hundred forty thousand, nine hundred forty-eight".