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102241024420 = 2255112051221
BaseRepresentation
bin101111100111000001…
…0100011100110100100
3100202220100112011211011
41133032002203212210
53133342200240140
6114545135552004
710246425240253
oct1371602434644
9322810464734
10102241024420
113a3a64359a7
121799438b604
139844ba5cb2
144d3c93a79a
1529d5d5bcea
hex17ce0a39a4

102241024420 has 12 divisors (see below), whose sum is σ = 214706151324. Its totient is φ = 40896409760.

The previous prime is 102241024411. The next prime is 102241024423. The reversal of 102241024420 is 24420142201.

It can be written as a sum of positive squares in 2 ways, for example, as 67755048804 + 34485975616 = 260298^2 + 185704^2 .

It is a junction number, because it is equal to n+sod(n) for n = 102241024391 and 102241024400.

It is not an unprimeable number, because it can be changed into a prime (102241024423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2556025591 + ... + 2556025630.

It is an arithmetic number, because the mean of its divisors is an integer number (17892179277).

Almost surely, 2102241024420 is an apocalyptic number.

102241024420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102241024420 is an abundant number, since it is smaller than the sum of its proper divisors (112465126904).

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

102241024420 is a wasteful number, since it uses less digits than its factorization.

102241024420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5112051230 (or 5112051228 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 102241024420 its reverse (24420142201), we get a palindrome (126661166621).

The spelling of 102241024420 in words is "one hundred two billion, two hundred forty-one million, twenty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 5112051221 10224102442 20448204884 25560256105 51120512210 102241024420