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31334605345 = 5191979166669
BaseRepresentation
bin11101001011101100…
…000010001000100001
32222212202120212201201
4131023230002020201
51003133124332340
622221145201201
72156333515351
oct351354021041
988782525651
1031334605345
111231a62785a
1260a5a90201
132c54a282c4
1417337b6b61
15c35da279a
hex74bb02221

31334605345 has 16 divisors (see below), whose sum is σ = 39600792000. Its totient is φ = 23736189888.

The previous prime is 31334605327. The next prime is 31334605349. The reversal of 31334605345 is 54350643313.

It is not a de Polignac number, because 31334605345 - 27 = 31334605217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31334605349) 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, 104671 + ... + 271339.

It is an arithmetic number, because the mean of its divisors is an integer number (2475049500).

Almost surely, 231334605345 is an apocalyptic number.

It is an amenable number.

31334605345 is a deficient number, since it is larger than the sum of its proper divisors (8266186655).

31334605345 is a wasteful number, since it uses less digits than its factorization.

31334605345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168672.

The product of its (nonzero) digits is 194400, while the sum is 37.

The spelling of 31334605345 in words is "thirty-one billion, three hundred thirty-four million, six hundred five thousand, three hundred forty-five".

Divisors: 1 5 19 95 1979 9895 37601 166669 188005 833345 3166711 15833555 329837951 1649189755 6266921069 31334605345