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120020311210 = 2512002031121
BaseRepresentation
bin110111111000111000…
…1001001110010101010
3102110210102101112020111
41233301301021302222
53431300144424320
6131045255444534
711446133545522
oct1576161116252
9373712345214
10120020311210
114699a378248
121b31668674a
13b419479337
145b47d12682
1531c6b68a5a
hex1bf1c49caa

120020311210 has 8 divisors (see below), whose sum is σ = 216036560196. Its totient is φ = 48008124480.

The previous prime is 120020311207. The next prime is 120020311211. The reversal of 120020311210 is 12113020021.

It can be written as a sum of positive squares in 2 ways, for example, as 97268510641 + 22751800569 = 311879^2 + 150837^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (120020311211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6001015551 + ... + 6001015570.

Almost surely, 2120020311210 is an apocalyptic number.

120020311210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120020311210 is a deficient number, since it is larger than the sum of its proper divisors (96016248986).

120020311210 is a wasteful number, since it uses less digits than its factorization.

120020311210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12002031128.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 120020311210 its reverse (12113020021), we get a palindrome (132133331231).

The spelling of 120020311210 in words is "one hundred twenty billion, twenty million, three hundred eleven thousand, two hundred ten".

Divisors: 1 2 5 10 12002031121 24004062242 60010155605 120020311210