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1206152101220 = 2251115734920443
BaseRepresentation
bin10001100011010100010…
…001000111110101100100
311021022021210222020022012
4101203110101013311210
5124230144414214340
62322033145253352
7153066400462133
oct21432421076544
94238253866265
101206152101220
11425587464870
12175915a94258
1389980039ba1
144254160b91a
1521594d6a565
hex118d4447d64

1206152101220 has 48 divisors (see below), whose sum is σ = 2780784796608. Its totient is φ = 435807116160.

The previous prime is 1206152101213. The next prime is 1206152101237. The reversal of 1206152101220 is 221012516021.

It is a super-2 number, since 2×12061521012202 (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17425682 + ... + 17494761.

It is an arithmetic number, because the mean of its divisors is an integer number (57933016596).

Almost surely, 21206152101220 is an apocalyptic number.

1206152101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1206152101220 is an abundant number, since it is smaller than the sum of its proper divisors (1574632695388).

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

1206152101220 is a wasteful number, since it uses less digits than its factorization.

1206152101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34920620 (or 34920618 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 1206152101220 its reverse (221012516021), we get a palindrome (1427164617241).

The spelling of 1206152101220 in words is "one trillion, two hundred six billion, one hundred fifty-two million, one hundred one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 157 220 314 628 785 1570 1727 3140 3454 6908 8635 17270 34540 34920443 69840886 139681772 174602215 349204430 384124873 698408860 768249746 1536499492 1920624365 3841248730 5482509551 7682497460 10965019102 21930038204 27412547755 54825095510 60307605061 109650191020 120615210122 241230420244 301538025305 603076050610 1206152101220