Search a number
-
+
10012020101210 = 257879712706093
BaseRepresentation
bin1001000110110001101011…
…1001101101000001011010
31022110010202220011122212002
42101230122321231001122
52303014104121214320
633143243013321002
72052226122461201
oct221543271550132
938403686148762
1010012020101210
11321008a374a66
121158491336162
1357818b50a54a
142688276a0238
15125680334675
hex91b1ae6d05a

10012020101210 has 16 divisors (see below), whose sum is σ = 18021866310216. Its totient is φ = 4004756900928.

The previous prime is 10012020101203. The next prime is 10012020101221. The reversal of 10012020101210 is 1210102021001.

It can be written as a sum of positive squares in 4 ways, for example, as 9952378158121 + 59641943089 = 3154739^2 + 244217^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10012020101191 and 10012020101200.

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, 5565077 + ... + 7141016.

Almost surely, 210012020101210 is an apocalyptic number.

10012020101210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10012020101210 is a deficient number, since it is larger than the sum of its proper divisors (8009846209006).

10012020101210 is a wasteful number, since it uses less digits than its factorization.

10012020101210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12784897.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10012020101210 its reverse (1210102021001), we get a palindrome (11222122122211).

The spelling of 10012020101210 in words is "ten trillion, twelve billion, twenty million, one hundred one thousand, two hundred ten".

Divisors: 1 2 5 10 78797 157594 393985 787970 12706093 25412186 63530465 127060930 1001202010121 2002404020242 5006010050605 10012020101210