Search a number
-
+
715960128 = 263131931487
BaseRepresentation
bin101010101011001…
…010111101000000
31211220012112122210
4222223022331000
52431241211003
6155013302120
723512363212
oct5253127500
91756175583
10715960128
11338160494
1217b934940
13b5439a60
146b1305b2
1542cc6503
hex2aacaf40

715960128 has 224 divisors, whose sum is σ = 2221219840. Its totient is φ = 201553920.

The previous prime is 715960127. The next prime is 715960177. The reversal of 715960128 is 821069517.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (715960121) 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, 1469901 + ... + 1470387.

It is an arithmetic number, because the mean of its divisors is an integer number (9916160).

Almost surely, 2715960128 is an apocalyptic number.

715960128 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 715960128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1110609920).

715960128 is an abundant number, since it is smaller than the sum of its proper divisors (1505259712).

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

715960128 is a wasteful number, since it uses less digits than its factorization.

715960128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565 (or 555 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 39.

The square root of 715960128 is about 26757.4312668462. The cubic root of 715960128 is about 894.6014800356.

The spelling of 715960128 in words is "seven hundred fifteen million, nine hundred sixty thousand, one hundred twenty-eight".