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131020203230322 = 23721465730405059
BaseRepresentation
bin11101110010100110000100…
…101011000000010001110010
3122011220102001020101011002120
4131302212010223000101302
5114133113334011332242
61142353503405455110
736411616530114600
oct3562460453002162
9564812036334076
10131020203230322
11388243a104108a
1212840714b71496
1358151c9374083
14244d5a98b0870
1510232098221ec
hex772984ac0472

131020203230322 has 48 divisors (see below), whose sum is σ = 304843320724320. Its totient is φ = 37431788524032.

The previous prime is 131020203230321. The next prime is 131020203230327. The reversal of 131020203230322 is 223032302020131.

It is a junction number, because it is equal to n+sod(n) for n = 131020203230292 and 131020203230301.

It is not an unprimeable number, because it can be changed into a prime (131020203230321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10893372 + ... + 19511687.

It is an arithmetic number, because the mean of its divisors is an integer number (6350902515090).

Almost surely, 2131020203230322 is an apocalyptic number.

131020203230322 is an abundant number, since it is smaller than the sum of its proper divisors (173823117493998).

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

131020203230322 is a wasteful number, since it uses less digits than its factorization.

131020203230322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30419735 (or 30419728 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 131020203230322 its reverse (223032302020131), we get a palindrome (354052505250453).

The spelling of 131020203230322 in words is "one hundred thirty-one trillion, twenty billion, two hundred three million, two hundred thirty thousand, three hundred twenty-two".

Divisors: 1 2 3 6 7 14 21 42 49 98 147 294 14657 29314 43971 87942 102599 205198 307797 615594 718193 1436386 2154579 4309158 30405059 60810118 91215177 182430354 212835413 425670826 638506239 1277012478 1489847891 2979695782 4469543673 8939087346 445646949763 891293899526 1336940849289 2673881698578 3119528648341 6239057296682 9358585945023 18717171890046 21836700538387 43673401076774 65510101615161 131020203230322