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30026378460 = 22351379487283
BaseRepresentation
bin11011111101101101…
…100010110011011100
32212111120221001211010
4123331231202303130
5442443223102320
621443253255220
72112040001661
oct337555426334
985446831733
1030026378460
1111809120611
12599b934510
132aa699c860
14164bb53a68
15bab0d9ae0
hex6fdb62cdc

30026378460 has 96 divisors (see below), whose sum is σ = 91687357440. Its totient is φ = 7297535232.

The previous prime is 30026378387. The next prime is 30026378461. The reversal of 30026378460 is 6487362003.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30026378461) 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, 182022 + ... + 305261.

It is an arithmetic number, because the mean of its divisors is an integer number (955076640).

Almost surely, 230026378460 is an apocalyptic number.

30026378460 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30026378460 is an abundant number, since it is smaller than the sum of its proper divisors (61660978980).

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

30026378460 is a wasteful number, since it uses less digits than its factorization.

30026378460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487387 (or 487385 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 39.

The spelling of 30026378460 in words is "thirty billion, twenty-six million, three hundred seventy-eight thousand, four hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 79 130 156 158 195 237 260 316 390 395 474 780 790 948 1027 1185 1580 2054 2370 3081 4108 4740 5135 6162 10270 12324 15405 20540 30810 61620 487283 974566 1461849 1949132 2436415 2923698 4872830 5847396 6334679 7309245 9745660 12669358 14618490 19004037 25338716 29236980 31673395 38008074 38495357 63346790 76016148 76990714 95020185 115486071 126693580 153981428 190040370 192476785 230972142 380080740 384953570 461944284 500439641 577430355 769907140 1000879282 1154860710 1501318923 2001758564 2309721420 2502198205 3002637846 5004396410 6005275692 7506594615 10008792820 15013189230 30026378460