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19013201000031 = 3743157251534311
BaseRepresentation
bin1000101001010110110110…
…00101110111011001011111
32111022122101200001100211210
410110223123011313121133
54443003013424000111
6104234313254515503
74001441562641250
oct424533305673137
974278350040753
1019013201000031
1160704a9322927
122170a76665b93
13a7bc24c34424
1449a35b142b27
1522e89c5270a6
hex114adb17765f

19013201000031 has 64 divisors (see below), whose sum is σ = 29954026561536. Its totient is φ = 10502397360000.

The previous prime is 19013201000023. The next prime is 19013201000113. The reversal of 19013201000031 is 13000010231091.

It is not a de Polignac number, because 19013201000031 - 23 = 19013201000023 is a prime.

It is a super-2 number, since 2×190132010000312 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 19013200999971 and 19013201000007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19013201000831) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 35317366 + ... + 35851676.

It is an arithmetic number, because the mean of its divisors is an integer number (468031665024).

Almost surely, 219013201000031 is an apocalyptic number.

19013201000031 is a deficient number, since it is larger than the sum of its proper divisors (10940825561505).

19013201000031 is a wasteful number, since it uses less digits than its factorization.

19013201000031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534772.

The product of its (nonzero) digits is 162, while the sum is 21.

The spelling of 19013201000031 in words is "nineteen trillion, thirteen billion, two hundred one million, thirty-one", and thus it is an aban number.

Divisors: 1 3 7 21 43 129 157 251 301 471 753 903 1099 1757 3297 5271 6751 10793 20253 32379 39407 47257 75551 118221 141771 226653 275849 534311 827547 1602933 1694501 3740177 5083503 11220531 11861507 22975373 35584521 68926119 83886827 134112061 160827611 251660481 402336183 482482833 587207789 938784427 1761623367 2816353281 3607133561 5766818623 10821400683 17300455869 21055593577 25249934927 40367730361 63166780731 75749804781 121103191083 147389155039 442167465117 905390523811 2716171571433 6337733666677 19013201000031