Search a number
-
+
23581357198560 = 253257103137193859
BaseRepresentation
bin1010101110010011101100…
…11010110100110011100000
310002111100121022212101202200
411113021312122310303200
511042324104420323220
6122053043112013200
74652461004646150
oct527116632646340
9102440538771680
1023581357198560
117571885412697
12278a284991200
13102093530a285
145b74b5482760
152ad612919890
hex1572766b4ce0

23581357198560 has 1152 divisors, whose sum is σ = 94132099676160. Its totient is φ = 5265141792768.

The previous prime is 23581357198471. The next prime is 23581357198561. The reversal of 23581357198560 is 6589175318532.

23581357198560 is a `hidden beast` number, since 2 + 3 + 5 + 8 + 1 + 3 + 57 + 19 + 8 + 560 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23581357198561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 27452103411 + ... + 27452104269.

It is an arithmetic number, because the mean of its divisors is an integer number (81711892080).

Almost surely, 223581357198560 is an apocalyptic number.

23581357198560 is a gapful number since it is divisible by the number (20) 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 23581357198560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47066049838080).

23581357198560 is an abundant number, since it is smaller than the sum of its proper divisors (70550742477600).

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

23581357198560 is a wasteful number, since it uses less digits than its factorization.

23581357198560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320 (or 1309 counting only the distinct ones).

The product of its (nonzero) digits is 54432000, while the sum is 63.

The spelling of 23581357198560 in words is "twenty-three trillion, five hundred eighty-one billion, three hundred fifty-seven million, one hundred ninety-eight thousand, five hundred sixty".