Search a number
-
+
102148560 = 24335192131
BaseRepresentation
bin1100001011010…
…10100111010000
321010012200111000
412011222213100
5202122223220
614045222000
72350151133
oct605524720
9233180430
10102148560
11527297a8
122a261900
1318216747
14d7d021a
158e7b390
hex616a9d0

102148560 has 240 divisors, whose sum is σ = 374172480. Its totient is φ = 25608960.

The previous prime is 102148549. The next prime is 102148561. The reversal of 102148560 is 65841201.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102148561) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 779695 + ... + 779825.

It is an arithmetic number, because the mean of its divisors is an integer number (1559052).

Almost surely, 2102148560 is an apocalyptic number.

102148560 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 102148560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187086240).

102148560 is an abundant number, since it is smaller than the sum of its proper divisors (272023920).

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

102148560 is a wasteful number, since it uses less digits than its factorization.

102148560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 102148560 is about 10106.8570782415. The cubic root of 102148560 is about 467.4595997765.

Adding to 102148560 its reverse (65841201), we get a palindrome (167989761).

The spelling of 102148560 in words is "one hundred two million, one hundred forty-eight thousand, five hundred sixty".