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34800381 = 3371119881
BaseRepresentation
bin1000010011000…
…0001011111101
32102111001011000
42010300023331
532402103011
63241520513
7601540560
oct204601375
972431130
1034800381
111870a050
12b7a3139
137295c55
14489c4d7
1530c6356
hex21302fd

34800381 has 64 divisors (see below), whose sum is σ = 67737600. Its totient is φ = 17107200.

The previous prime is 34800371. The next prime is 34800401. The reversal of 34800381 is 18300843.

It is not a de Polignac number, because 34800381 - 27 = 34800253 is a prime.

It is a super-2 number, since 2×348003812 = 2422133035490322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34800331) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 39061 + ... + 39941.

It is an arithmetic number, because the mean of its divisors is an integer number (1058400).

Almost surely, 234800381 is an apocalyptic number.

It is an amenable number.

34800381 is a deficient number, since it is larger than the sum of its proper divisors (32937219).

34800381 is a wasteful number, since it uses less digits than its factorization.

34800381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927 (or 921 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 34800381 is about 5899.1847741870. The cubic root of 34800381 is about 326.4835716746.

The spelling of 34800381 in words is "thirty-four million, eight hundred thousand, three hundred eighty-one".

Divisors: 1 3 7 9 11 19 21 27 33 57 63 77 99 133 171 189 209 231 297 399 513 627 693 881 1197 1463 1881 2079 2643 3591 4389 5643 6167 7929 9691 13167 16739 18501 23787 29073 39501 50217 55503 67837 87219 117173 150651 166509 184129 203511 261657 351519 451953 552387 610533 1054557 1288903 1657161 1831599 3163671 3866709 4971483 11600127 34800381