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10102010020 = 2253791332719
BaseRepresentation
bin10010110100010000…
…00111000010100100
3222002000201021120021
421122020013002210
5131142103310040
64350225044524
7505223445154
oct113210070244
928060637507
1010102010020
114314359713
121b5b186744
13c4cb85b2b
146bb918764
153e1d0d24a
hex25a2070a4

10102010020 has 24 divisors (see below), whose sum is σ = 21270211200. Its totient is φ = 4030139232.

The previous prime is 10102009987. The next prime is 10102010089. The reversal of 10102010020 is 2001020101.

It is a junction number, because it is equal to n+sod(n) for n = 10102009985 and 10102010012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 658780 + ... + 673939.

It is an arithmetic number, because the mean of its divisors is an integer number (886258800).

Almost surely, 210102010020 is an apocalyptic number.

10102010020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10102010020 is an abundant number, since it is smaller than the sum of its proper divisors (11168201180).

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

10102010020 is a wasteful number, since it uses less digits than its factorization.

10102010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333107 (or 1333105 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 10102010020 its reverse (2001020101), we get a palindrome (12103030121).

The spelling of 10102010020 in words is "ten billion, one hundred two million, ten thousand, twenty".

Divisors: 1 2 4 5 10 20 379 758 1516 1895 3790 7580 1332719 2665438 5330876 6663595 13327190 26654380 505100501 1010201002 2020402004 2525502505 5051005010 10102010020