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30197877852 = 22317314775123
BaseRepresentation
bin11100000111111011…
…110000110001011100
32212221112122010202110
4130013323300301130
5443321124042402
621512301154020
72116221504132
oct340773606134
985845563673
1030197877852
1111896a0764a
125a2925b910
132b0338849c
141666837752
15bbb1b456c
hex707ef0c5c

30197877852 has 48 divisors (see below), whose sum is σ = 77013199872. Its totient is φ = 9168234240.

The previous prime is 30197877823. The next prime is 30197877881. The reversal of 30197877852 is 25877879103.

It is an interprime number because it is at equal distance from previous prime (30197877823) and next prime (30197877881).

It is a junction number, because it is equal to n+sod(n) for n = 30197877792 and 30197877801.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2381238 + ... + 2393885.

It is an arithmetic number, because the mean of its divisors is an integer number (1604441664).

Almost surely, 230197877852 is an apocalyptic number.

It is an amenable number.

30197877852 is an abundant number, since it is smaller than the sum of its proper divisors (46815322020).

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

30197877852 is a wasteful number, since it uses less digits than its factorization.

30197877852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4775178 (or 4775176 counting only the distinct ones).

The product of its (nonzero) digits is 5927040, while the sum is 57.

The spelling of 30197877852 in words is "thirty billion, one hundred ninety-seven million, eight hundred seventy-seven thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 12 17 31 34 51 62 68 93 102 124 186 204 372 527 1054 1581 2108 3162 6324 4775123 9550246 14325369 19100492 28650738 57301476 81177091 148028813 162354182 243531273 296057626 324708364 444086439 487062546 592115252 888172878 974125092 1776345756 2516489821 5032979642 7549469463 10065959284 15098938926 30197877852