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31730014746 = 2322389737873
BaseRepresentation
bin11101100011010000…
…011001101000011010
310000220022121202110100
4131203100121220122
51004440340432441
622324312200230
72202204450423
oct354320315032
9100808552410
1031730014746
1112502847791
126196399076
132cb8920271
14177010464a
15c5a95acb6
hex763419a1a

31730014746 has 24 divisors (see below), whose sum is σ = 68777235540. Its totient is φ = 10572230016.

The previous prime is 31730014741. The next prime is 31730014747. The reversal of 31730014746 is 64741003713.

It can be written as a sum of positive squares in 2 ways, for example, as 31483179225 + 246835521 = 177435^2 + 15711^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31730014746.

It is not an unprimeable number, because it can be changed into a prime (31730014741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 325935 + ... + 411938.

Almost surely, 231730014746 is an apocalyptic number.

31730014746 is an abundant number, since it is smaller than the sum of its proper divisors (37047220794).

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

31730014746 is a wasteful number, since it uses less digits than its factorization.

31730014746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740270 (or 740267 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The spelling of 31730014746 in words is "thirty-one billion, seven hundred thirty million, fourteen thousand, seven hundred forty-six".

Divisors: 1 2 3 6 9 18 2389 4778 7167 14334 21501 43002 737873 1475746 2213619 4427238 6640857 13281714 1762778597 3525557194 5288335791 10576671582 15865007373 31730014746