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10102100120020 = 2253116293709871
BaseRepresentation
bin1001001100000001010000…
…0101101101000111010100
31022202202021201121202011001
42103000110011231013110
52311003100112320040
633252501332553044
72061565313136556
oct223002405550724
938682251552131
1010102100120020
11324530517a3a7
121171a30a82784
13583815a9861c
1426cd3106b4d6
15127ba371a59a
hex9301416d1d4

10102100120020 has 24 divisors (see below), whose sum is σ = 21898746067968. Its totient is φ = 3910490368800.

The previous prime is 10102100120003. The next prime is 10102100120081. The reversal of 10102100120020 is 2002100120101.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 10102100119979 and 10102100120006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8146854316 + ... + 8146855555.

It is an arithmetic number, because the mean of its divisors is an integer number (912447752832).

Almost surely, 210102100120020 is an apocalyptic number.

10102100120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10102100120020 is an abundant number, since it is smaller than the sum of its proper divisors (11796645947948).

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

10102100120020 is a wasteful number, since it uses less digits than its factorization.

10102100120020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16293709911 (or 16293709909 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 10102100120020 its reverse (2002100120101), we get a palindrome (12104200240121).

The spelling of 10102100120020 in words is "ten trillion, one hundred two billion, one hundred million, one hundred twenty thousand, twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 16293709871 32587419742 65174839484 81468549355 162937098710 325874197420 505105006001 1010210012002 2020420024004 2525525030005 5051050060010 10102100120020