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210144430131 = 3181659587263
BaseRepresentation
bin1100001110110110010…
…1011000100000110011
3202002102022211010111220
43003231211120200303
511420333433231011
6240312232240123
721116401120026
oct3035545304063
9662368733456
10210144430131
1181138063759
1234888b40043
1316a7cc0825c
14a2574bd1bd
1556edd61506
hex30ed958833

210144430131 has 16 divisors (see below), whose sum is σ = 282168606720. Its totient is φ = 139110622560.

The previous prime is 210144430123. The next prime is 210144430157. The reversal of 210144430131 is 131034441012.

It is not a de Polignac number, because 210144430131 - 23 = 210144430123 is a prime.

It is a super-2 number, since 2×2101444301312 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (210144435131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64206 + ... + 651468.

It is an arithmetic number, because the mean of its divisors is an integer number (17635537920).

Almost surely, 2210144430131 is an apocalyptic number.

210144430131 is a deficient number, since it is larger than the sum of its proper divisors (72024176589).

210144430131 is a wasteful number, since it uses less digits than its factorization.

210144430131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588106.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 210144430131 its reverse (131034441012), we get a palindrome (341178871143).

The spelling of 210144430131 in words is "two hundred ten billion, one hundred forty-four million, four hundred thirty thousand, one hundred thirty-one".

Divisors: 1 3 181 543 659 1977 119279 357837 587263 1761789 106294603 318883809 387006317 1161018951 70048143377 210144430131