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30503672870 = 25112157211761
BaseRepresentation
bin11100011010001010…
…010001110000100110
32220201212001010122212
4130122022101300212
5444432420012440
622002503323422
72126623640606
oct343212216046
986655033585
1030503672870
1111a33589a00
125ab3750572
132b51834b98
1416952b8c06
15bd7e6a465
hex71a291c26

30503672870 has 96 divisors (see below), whose sum is σ = 61104341088. Its totient is φ = 10954944000.

The previous prime is 30503672821. The next prime is 30503672879. The reversal of 30503672870 is 7827630503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30503672879) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40083290 + ... + 40084050.

It is an arithmetic number, because the mean of its divisors is an integer number (636503553).

Almost surely, 230503672870 is an apocalyptic number.

30503672870 is an abundant number, since it is smaller than the sum of its proper divisors (30600668218).

30503672870 is a wasteful number, since it uses less digits than its factorization.

30503672870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158 (or 1147 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 41.

The spelling of 30503672870 in words is "thirty billion, five hundred three million, six hundred seventy-two thousand, eight hundred seventy".

Divisors: 1 2 5 10 11 22 55 110 121 157 211 242 314 422 605 761 785 1055 1210 1522 1570 1727 2110 2321 3454 3805 4642 7610 8371 8635 11605 16742 17270 18997 23210 25531 33127 37994 41855 51062 66254 83710 92081 94985 119477 127655 160571 165635 184162 189970 238954 255310 321142 331270 364397 460405 597385 728794 802855 920810 1194770 1314247 1605710 1766281 1821985 2628494 3532562 3643970 4008367 6571235 8016734 8831405 13142470 14456717 17662810 19429091 20041835 25209647 28913434 38858182 40083670 50419294 72283585 97145455 126048235 144567170 194290910 252096470 277306117 554612234 1386530585 2773061170 3050367287 6100734574 15251836435 30503672870