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30671007672 = 23319124127763
BaseRepresentation
bin11100100100001000…
…100110111110111000
32221011111220121212010
4130210020212332320
51000303234221142
622031242045520
72134025156304
oct344410467670
987144817763
1030671007672
1112009a91028
125b3b7a98a0
132b7a3c3066
1416ad5d6d04
15be79c0e9c
hex724226fb8

30671007672 has 64 divisors (see below), whose sum is σ = 77401589760. Its totient is φ = 10127577600.

The previous prime is 30671007671. The next prime is 30671007737. The reversal of 30671007672 is 27670017603.

It is a self number, because there is not a number n which added to its sum of digits gives 30671007672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30671007671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1090863 + ... + 1118625.

It is an arithmetic number, because the mean of its divisors is an integer number (1209399840).

Almost surely, 230671007672 is an apocalyptic number.

It is an amenable number.

30671007672 is an abundant number, since it is smaller than the sum of its proper divisors (46730582088).

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

30671007672 is a wasteful number, since it uses less digits than its factorization.

30671007672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28204 (or 28200 counting only the distinct ones).

The product of its (nonzero) digits is 74088, while the sum is 39.

The spelling of 30671007672 in words is "thirty billion, six hundred seventy-one million, seven thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 24 191 241 382 482 573 723 764 964 1146 1446 1528 1928 2292 2892 4584 5784 27763 46031 55526 83289 92062 111052 138093 166578 184124 222104 276186 333156 368248 552372 666312 1104744 5302733 6690883 10605466 13381766 15908199 20072649 21210932 26763532 31816398 40145298 42421864 53527064 63632796 80290596 127265592 160581192 1277958653 2555917306 3833875959 5111834612 7667751918 10223669224 15335503836 30671007672