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30836062840 = 23511251279211
BaseRepresentation
bin11100101101111110…
…001111101001111000
32221121000111021222111
4130231332033221320
51001123013002330
622055455502104
72141101131562
oct345576175170
987530437874
1030836062840
1112094176460
125b86b27934
132ba566373b
1416c74c0332
15c0722632a
hex72df8fa78

30836062840 has 64 divisors (see below), whose sum is σ = 75990337920. Its totient is φ = 11168400000.

The previous prime is 30836062837. The next prime is 30836062879. The reversal of 30836062840 is 4826063803.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 30836062793 and 30836062802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29166 + ... + 250045.

It is an arithmetic number, because the mean of its divisors is an integer number (1187349030).

Almost surely, 230836062840 is an apocalyptic number.

It is an amenable number.

30836062840 is an abundant number, since it is smaller than the sum of its proper divisors (45154275080).

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

30836062840 is a wasteful number, since it uses less digits than its factorization.

30836062840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279484 (or 279480 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 40.

The spelling of 30836062840 in words is "thirty billion, eight hundred thirty-six million, sixty-two thousand, eight hundred forty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 251 440 502 1004 1255 2008 2510 2761 5020 5522 10040 11044 13805 22088 27610 55220 110440 279211 558422 1116844 1396055 2233688 2792110 3071321 5584220 6142642 11168440 12285284 15356605 24570568 30713210 61426420 70081961 122852840 140163922 280327844 350409805 560655688 700819610 770901571 1401639220 1541803142 2803278440 3083606284 3854507855 6167212568 7709015710 15418031420 30836062840