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10143134420 = 2251926692459
BaseRepresentation
bin10010111001001001…
…11111001011010100
3222011220002121122012
421130210333023110
5131233120300140
64354254323352
7506233135316
oct113444771324
928156077565
1010143134420
114335598021
121b70ab9558
13c585543b3
146c31817b6
153e5733265
hex25c93f2d4

10143134420 has 24 divisors (see below), whose sum is σ = 22421666400. Its totient is φ = 3843713952.

The previous prime is 10143134377. The next prime is 10143134423. The reversal of 10143134420 is 2443134101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10143134423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13345850 + ... + 13346609.

It is an arithmetic number, because the mean of its divisors is an integer number (934236100).

Almost surely, 210143134420 is an apocalyptic number.

10143134420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10143134420 is an abundant number, since it is smaller than the sum of its proper divisors (12278531980).

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

10143134420 is a wasteful number, since it uses less digits than its factorization.

10143134420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26692487 (or 26692485 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 10143134420 its reverse (2443134101), we get a palindrome (12586268521).

The spelling of 10143134420 in words is "ten billion, one hundred forty-three million, one hundred thirty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 26692459 53384918 106769836 133462295 266924590 507156721 533849180 1014313442 2028626884 2535783605 5071567210 10143134420