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30940131250 = 25572313259
BaseRepresentation
bin11100110100001011…
…001110111110110010
32221212021022112000001
4130310023032332302
51001331133200000
622114054220214
72143503530200
oct346413167662
987767275001
1030940131250
1112137996606
125bb595466a
132bc109cc92
1416d7250070
15c1143146a
hex7342cefb2

30940131250 has 144 divisors (see below), whose sum is σ = 69678040320. Its totient is φ = 10262700000.

The previous prime is 30940131247. The next prime is 30940131253. The reversal of 30940131250 is 5213104903.

It is an interprime number because it is at equal distance from previous prime (30940131247) and next prime (30940131253).

It is not an unprimeable number, because it can be changed into a prime (30940131253) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 9492121 + ... + 9495379.

It is an arithmetic number, because the mean of its divisors is an integer number (483875280).

Almost surely, 230940131250 is an apocalyptic number.

30940131250 is an abundant number, since it is smaller than the sum of its proper divisors (38737909070).

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

30940131250 is an equidigital number, since it uses as much as digits as its factorization.

30940131250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3331 (or 3304 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The spelling of 30940131250 in words is "thirty billion, nine hundred forty million, one hundred thirty-one thousand, two hundred fifty".

Divisors: 1 2 5 7 10 14 25 31 35 49 50 62 70 98 125 155 175 217 245 250 310 350 434 490 625 775 875 1085 1225 1250 1519 1550 1750 2170 2450 3038 3125 3259 3875 4375 5425 6125 6250 6518 7595 7750 8750 10850 12250 15190 16295 19375 21875 22813 27125 30625 32590 37975 38750 43750 45626 54250 61250 75950 81475 96875 101029 114065 135625 153125 159691 162950 189875 193750 202058 228130 271250 306250 319382 379750 407375 505145 570325 678125 707203 798455 814750 949375 1010290 1140650 1356250 1414406 1596910 1898750 2036875 2525725 2851625 3536015 3992275 4073750 4746875 4950421 5051450 5703250 7072030 7984550 9493750 9900842 10184375 12628625 14258125 17680075 19961375 20368750 24752105 25257250 28516250 35360150 39922750 49504210 63143125 71290625 88400375 99806875 123760525 126286250 142581250 176800750 199613750 247521050 315715625 442001875 499034375 618802625 631431250 884003750 998068750 1237605250 2210009375 3094013125 4420018750 6188026250 15470065625 30940131250