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102215344342524 = 22371910338310091609
BaseRepresentation
bin10111001111011011011101…
…010010100100010111111100
3111101220200200002112102120120
4113033123131102210113330
5101344144011122430044
61001221025252214540
730346546343305650
oct2717333522442774
9441820602472516
10102215344342524
112a629314150876
12b56a02800a450
134505b3399a5aa
141b3536b600a60
15bc3cc7da3519
hex5cf6dd4a45fc

102215344342524 has 384 divisors, whose sum is σ = 290930884608000. Its totient is φ = 27283108995072.

The previous prime is 102215344342523. The next prime is 102215344342561. The reversal of 102215344342524 is 425243443512201.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102215344342523) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 63527248632 + ... + 63527250240.

It is an arithmetic number, because the mean of its divisors is an integer number (757632512000).

Almost surely, 2102215344342524 is an apocalyptic number.

102215344342524 is a gapful number since it is divisible by the number (14) 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 102215344342524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145465442304000).

102215344342524 is an abundant number, since it is smaller than the sum of its proper divisors (188715540265476).

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

102215344342524 is a wasteful number, since it uses less digits than its factorization.

102215344342524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3137 (or 3135 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 42.

Adding to 102215344342524 its reverse (425243443512201), we get a palindrome (527458787854725).

The spelling of 102215344342524 in words is "one hundred two trillion, two hundred fifteen billion, three hundred forty-four million, three hundred forty-two thousand, five hundred twenty-four".