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30497158039 = 19231033072207
BaseRepresentation
bin11100011001110001…
…011011001110010111
32220201101210010222211
4130121301123032113
5444424233024124
622002111534251
72126514365125
oct343161331627
986641703884
1030497158039
1111a2a93a247
125ab152a387
132b5039375a
1416944a0915
15bd75cee94
hex719c5b397

30497158039 has 32 divisors (see below), whose sum is σ = 33948794880. Its totient is φ = 27266054112.

The previous prime is 30497157989. The next prime is 30497158079. The reversal of 30497158039 is 93085179403.

It is a cyclic number.

It is not a de Polignac number, because 30497158039 - 225 = 30463603607 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30497157983 and 30497158001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30497158079) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13817274 + ... + 13819480.

It is an arithmetic number, because the mean of its divisors is an integer number (1060899840).

Almost surely, 230497158039 is an apocalyptic number.

30497158039 is a deficient number, since it is larger than the sum of its proper divisors (3451636841).

30497158039 is a wasteful number, since it uses less digits than its factorization.

30497158039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2659.

The product of its (nonzero) digits is 816480, while the sum is 49.

The spelling of 30497158039 in words is "thirty billion, four hundred ninety-seven million, one hundred fifty-eight thousand, thirty-nine".

Divisors: 1 19 23 103 307 437 1957 2207 2369 5833 7061 31621 41933 45011 50761 134159 227321 600799 677549 727283 964459 4319099 5228383 12873431 13818377 15583627 69787547 99339277 296088913 1325963393 1605113581 30497158039