Search a number
-
+
128248497300 = 2235271131792267
BaseRepresentation
bin111011101110000110…
…1001100010010010100
3110021000212011200121110
41313130031030102110
54100123103403200
6134525550215020
712160055145330
oct1673415142224
9407025150543
10128248497300
114a431a2a240
1220a321b4470
13c12b064bc1
1462c8a187c0
1535091d9b50
hex1ddc34c494

128248497300 has 576 divisors, whose sum is σ = 483809034240. Its totient is φ = 25451712000.

The previous prime is 128248497259. The next prime is 128248497317. The reversal of 128248497300 is 3794842821.

It is a self number, because there is not a number n which added to its sum of digits gives 128248497300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 56570767 + ... + 56573033.

It is an arithmetic number, because the mean of its divisors is an integer number (839946240).

Almost surely, 2128248497300 is an apocalyptic number.

128248497300 is a gapful number since it is divisible by the number (10) 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 128248497300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241904517120).

128248497300 is an abundant number, since it is smaller than the sum of its proper divisors (355560536940).

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

128248497300 is a wasteful number, since it uses less digits than its factorization.

128248497300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2412 (or 2405 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 128248497300 in words is "one hundred twenty-eight billion, two hundred forty-eight million, four hundred ninety-seven thousand, three hundred".