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189006693 = 3374736229
BaseRepresentation
bin10110100010000…
…00001101100101
3111011122112102220
423101000031211
5341341203233
630431022553
74453346631
oct1321001545
9434575386
10189006693
1197764587
125336aa59
13302085a5
141b15ddc1
15118d6eb3
hexb440365

189006693 has 16 divisors (see below), whose sum is σ = 264334080. Its totient is φ = 119987136.

The previous prime is 189006691. The next prime is 189006703. The reversal of 189006693 is 396600981.

It is not a de Polignac number, because 189006693 - 21 = 189006691 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189006691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12898 + ... + 23331.

It is an arithmetic number, because the mean of its divisors is an integer number (16520880).

Almost surely, 2189006693 is an apocalyptic number.

It is an amenable number.

189006693 is a deficient number, since it is larger than the sum of its proper divisors (75327387).

189006693 is a wasteful number, since it uses less digits than its factorization.

189006693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36316.

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 189006693 is about 13747.9705047691. The cubic root of 189006693 is about 573.8861289573.

The spelling of 189006693 in words is "one hundred eighty-nine million, six thousand, six hundred ninety-three".

Divisors: 1 3 37 47 111 141 1739 5217 36229 108687 1340473 1702763 4021419 5108289 63002231 189006693