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31143000003 = 319315375971
BaseRepresentation
bin11101000000010001…
…000111011111000011
32222101102001022121120
4131000101013133003
51002240102000003
622150142323323
72151516063243
oct350021073703
988342038546
1031143000003
1112231458935
126051889543
132c2411cc6b
14171617bb23
15c24155853
hex7404477c3

31143000003 has 8 divisors (see below), whose sum is σ = 41545511616. Its totient is φ = 20751244200.

The previous prime is 31143000001. The next prime is 31143000023. The reversal of 31143000003 is 30000034113.

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

It is not a de Polignac number, because 31143000003 - 21 = 31143000001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31143000001) 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, 2682193 + ... + 2693778.

It is an arithmetic number, because the mean of its divisors is an integer number (5193188952).

Almost surely, 231143000003 is an apocalyptic number.

31143000003 is a deficient number, since it is larger than the sum of its proper divisors (10402511613).

31143000003 is a wasteful number, since it uses less digits than its factorization.

31143000003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5377905.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 31143000003 its reverse (30000034113), we get a palindrome (61143034116).

The spelling of 31143000003 in words is "thirty-one billion, one hundred forty-three million, three", and thus it is an aban number.

Divisors: 1 3 1931 5793 5375971 16127913 10381000001 31143000003