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131220113030 = 2533738937719
BaseRepresentation
bin111101000110101010…
…1000000011010000110
3110112200221210102001022
41322031111000122012
54122214322104110
6140140502231142
712323520362126
oct1721525003206
9415627712038
10131220113030
1150717373106
12215214254b2
13c4b28bb9c6
1464cb552c86
153630023755
hex1e8d540686

131220113030 has 16 divisors (see below), whose sum is σ = 236897088480. Its totient is φ = 52332292992.

The previous prime is 131220112987. The next prime is 131220113093. The reversal of 131220113030 is 30311022131.

131220113030 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 19465490 + ... + 19472229.

It is an arithmetic number, because the mean of its divisors is an integer number (14806068030).

Almost surely, 2131220113030 is an apocalyptic number.

131220113030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131220113030 is a deficient number, since it is larger than the sum of its proper divisors (105676975450).

131220113030 is a wasteful number, since it uses less digits than its factorization.

131220113030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38938063.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 131220113030 its reverse (30311022131), we get a palindrome (161531135161).

It can be divided in two parts, 1312201 and 13030, that added together give a palindrome (1325231).

The spelling of 131220113030 in words is "one hundred thirty-one billion, two hundred twenty million, one hundred thirteen thousand, thirty".

Divisors: 1 2 5 10 337 674 1685 3370 38937719 77875438 194688595 389377190 13122011303 26244022606 65610056515 131220113030