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101103408720 = 243253712313083
BaseRepresentation
bin101111000101000111…
…0111001011001010000
3100122222001220022110100
41132022032321121100
53124024433034340
6114240220532400
710206302536356
oct1361216713120
9318861808410
10101103408720
1139972269436
12177173b1100
1396c32b4b02
144c718097d6
15296b045830
hex178a3b9650

101103408720 has 240 divisors, whose sum is σ = 349112155392. Its totient is φ = 26202424320.

The previous prime is 101103408719. The next prime is 101103408727. The reversal of 101103408720 is 27804301101.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101103408727) 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, 32792299 + ... + 32795381.

Almost surely, 2101103408720 is an apocalyptic number.

101103408720 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 101103408720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174556077696).

101103408720 is an abundant number, since it is smaller than the sum of its proper divisors (248008746672).

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

101103408720 is a wasteful number, since it uses less digits than its factorization.

101103408720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4370 (or 4361 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

Adding to 101103408720 its reverse (27804301101), we get a palindrome (128907709821).

The spelling of 101103408720 in words is "one hundred one billion, one hundred three million, four hundred eight thousand, seven hundred twenty".