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102826020040 = 2353796782719
BaseRepresentation
bin101111111000011101…
…0001000110011001000
3100211102010022000221121
41133300322020303020
53141041430120130
6115123154245024
710300060514662
oct1376072106310
9324363260847
10102826020040
113a676675857
1217b18286774
13990914a253
144d964d9532
152a1c3b3d7a
hex17f0e88cc8

102826020040 has 32 divisors (see below), whose sum is σ = 231969024000. Its totient is φ = 41021878464.

The previous prime is 102826020023. The next prime is 102826020049. The reversal of 102826020040 is 40020628201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102826019987 and 102826020014.

It is not an unprimeable number, because it can be changed into a prime (102826020049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3376200 + ... + 3406519.

It is an arithmetic number, because the mean of its divisors is an integer number (7249032000).

Almost surely, 2102826020040 is an apocalyptic number.

102826020040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102826020040 is an abundant number, since it is smaller than the sum of its proper divisors (129143003960).

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

102826020040 is a wasteful number, since it uses less digits than its factorization.

102826020040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6783109 (or 6783105 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 102826020040 its reverse (40020628201), we get a palindrome (142846648241).

The spelling of 102826020040 in words is "one hundred two billion, eight hundred twenty-six million, twenty thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 379 758 1516 1895 3032 3790 7580 15160 6782719 13565438 27130876 33913595 54261752 67827190 135654380 271308760 2570650501 5141301002 10282602004 12853252505 20565204008 25706505010 51413010020 102826020040